gcc/ada/prj-nmsc.adb

   1 ------------------------------------------------------------------------------
   2 --                                                                          --
   3 --                         GNAT COMPILER COMPONENTS                         --
   4 --                                                                          --
   5 --                             P R J . N M S C                              --
   6 --                                                                          --
   7 --                                 B o d y                                  --
   8 --                                                                          --
   9 --          Copyright (C) 2000-2006, Free Software Foundation, Inc.         --
  10 --                                                                          --
  11 -- GNAT is free software;  you can  redistribute it  and/or modify it under --
  12 -- terms of the  GNU General Public License as published  by the Free Soft- --
  13 -- ware  Foundation;  either version 2,  or (at your option) any later ver- --
  14 -- sion.  GNAT is distributed in the hope that it will be useful, but WITH- --
  15 -- OUT ANY WARRANTY;  without even the  implied warranty of MERCHANTABILITY --
  16 -- or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License --
  17 -- for  more details.  You should have  received  a copy of the GNU General --
  18 -- Public License  distributed with GNAT;  see file COPYING.  If not, write --
  19 -- to  the  Free Software Foundation,  51  Franklin  Street,  Fifth  Floor, --
  20 -- Boston, MA 02110-1301, USA.                                              --
  21 --                                                                          --
  22 -- GNAT was originally developed  by the GNAT team at  New York University. --
  23 -- Extensive contributions were provided by Ada Core Technologies Inc.      --
  24 --                                                                          --
  25 ------------------------------------------------------------------------------
  26
  27 with Err_Vars; use Err_Vars;
  28 with Fmap;     use Fmap;
  29 with Hostparm;
  30 with MLib.Tgt; use MLib.Tgt;
  31 with Namet;    use Namet;
  32 with Osint;    use Osint;
  33 with Output;   use Output;
  34 with Prj.Env;  use Prj.Env;
  35 with Prj.Err;
  36 with Prj.Util; use Prj.Util;
  37 with Sinput.P;
  38 with Snames;   use Snames;
  39 with Table;    use Table;
  40 with Targparm; use Targparm;
  41
  42 with Ada.Characters.Handling;    use Ada.Characters.Handling;
  43 with Ada.Strings;                use Ada.Strings;
  44 with Ada.Strings.Fixed;          use Ada.Strings.Fixed;
  45 with Ada.Strings.Maps.Constants; use Ada.Strings.Maps.Constants;
  46
  47 with GNAT.Case_Util;             use GNAT.Case_Util;
  48 with GNAT.Directory_Operations;  use GNAT.Directory_Operations;
  49 with GNAT.HTable;
  50
  51 package body Prj.Nmsc is
  52
  53    Error_Report : Put_Line_Access := null;
  54    --  Set to point to error reporting procedure
  55
  56    When_No_Sources : Error_Warning := Error;
  57    --  Indicates what should be done when there is no Ada sources in a non
  58    --  extending Ada project.
  59
  60    ALI_Suffix   : constant String := ".ali";
  61    --  File suffix for ali files
  62
  63    Object_Suffix : constant String := Get_Target_Object_Suffix.all;
  64    --  File suffix for object files
  65
  66    type Name_Location is record
  67       Name     : Name_Id;
  68       Location : Source_Ptr;
  69       Found    : Boolean := False;
  70    end record;
  71    --  Information about file names found in string list attribute
  72    --  Source_Files or in a source list file, stored in hash table
  73    --  Source_Names, used by procedure Get_Path_Names_And_Record_Sources.
  74
  75    No_Name_Location : constant Name_Location :=
  76      (Name => No_Name, Location => No_Location, Found => False);
  77
  78    package Source_Names is new GNAT.HTable.Simple_HTable
  79      (Header_Num => Header_Num,
  80       Element    => Name_Location,
  81       No_Element => No_Name_Location,
  82       Key        => Name_Id,
  83       Hash       => Hash,
  84       Equal      => "=");
  85    --  Hash table to store file names found in string list attribute
  86    --  Source_Files or in a source list file, stored in hash table
  87    --  Source_Names, used by procedure Get_Path_Names_And_Record_Sources.
  88
  89    package Recursive_Dirs is new GNAT.HTable.Simple_HTable
  90      (Header_Num => Header_Num,
  91       Element    => Boolean,
  92       No_Element => False,
  93       Key        => Name_Id,
  94       Hash       => Hash,
  95       Equal      => "=");
  96    --  Hash table to store recursive source directories, to avoid looking
  97    --  several times, and to avoid cycles that may be introduced by symbolic
  98    --  links.
  99
 100    type Ada_Naming_Exception_Id is new Nat;
 101    No_Ada_Naming_Exception : constant Ada_Naming_Exception_Id := 0;
 102
 103    type Unit_Info is record
 104       Kind : Spec_Or_Body;
 105       Unit : Name_Id;
 106       Next : Ada_Naming_Exception_Id := No_Ada_Naming_Exception;
 107    end record;
 108    --  No_Unit : constant Unit_Info :=
 109    --              (Specification, No_Name, No_Ada_Naming_Exception);
 110
 111    package Ada_Naming_Exception_Table is new Table.Table
 112      (Table_Component_Type => Unit_Info,
 113       Table_Index_Type     => Ada_Naming_Exception_Id,
 114       Table_Low_Bound      => 1,
 115       Table_Initial        => 20,
 116       Table_Increment      => 100,
 117       Table_Name           => "Prj.Nmsc.Ada_Naming_Exception_Table");
 118
 119    package Ada_Naming_Exceptions is new GNAT.HTable.Simple_HTable
 120      (Header_Num => Header_Num,
 121       Element    => Ada_Naming_Exception_Id,
 122       No_Element => No_Ada_Naming_Exception,
 123       Key        => Name_Id,
 124       Hash       => Hash,
 125       Equal      => "=");
 126    --  A hash table to store naming exceptions for Ada. For each file name
 127    --  there is one or several unit in table Ada_Naming_Exception_Table.
 128
 129    function Hash (Unit : Unit_Info) return Header_Num;
 130
 131    type Name_And_Index is record
 132       Name  : Name_Id := No_Name;
 133       Index : Int     := 0;
 134    end record;
 135    No_Name_And_Index : constant Name_And_Index :=
 136                          (Name => No_Name, Index => 0);
 137
 138    package Reverse_Ada_Naming_Exceptions is new GNAT.HTable.Simple_HTable
 139      (Header_Num => Header_Num,
 140       Element    => Name_And_Index,
 141       No_Element => No_Name_And_Index,
 142       Key        => Unit_Info,
 143       Hash       => Hash,
 144       Equal      => "=");
 145    --  A table to check if a unit with an exceptional name will hide
 146    --  a source with a file name following the naming convention.
 147
 148    function ALI_File_Name (Source : String) return String;
 149    --  Return the ALI file name corresponding to a source
 150
 151    procedure Check_Ada_Name (Name : String; Unit : out Name_Id);
 152    --  Check that a name is a valid Ada unit name
 153
 154    procedure Check_Naming_Scheme
 155      (Data    : in out Project_Data;
 156       Project : Project_Id;
 157       In_Tree : Project_Tree_Ref);
 158    --  Check the naming scheme part of Data
 159
 160    procedure Check_Ada_Naming_Scheme_Validity
 161      (Project : Project_Id;
 162       In_Tree : Project_Tree_Ref;
 163       Naming  : Naming_Data);
 164    --  Check that the package Naming is correct
 165
 166    procedure Check_For_Source
 167      (File_Name        : Name_Id;
 168       Path_Name        : Name_Id;
 169       Project          : Project_Id;
 170       In_Tree          : Project_Tree_Ref;
 171       Data             : in out Project_Data;
 172       Location         : Source_Ptr;
 173       Language         : Language_Index;
 174       Suffix           : String;
 175       Naming_Exception : Boolean);
 176    --  Check if a file, with name File_Name and path Path_Name, in a source
 177    --  directory is a source for language Language in project Project of
 178    --  project tree In_Tree. ???
 179
 180    procedure Check_If_Externally_Built
 181      (Project : Project_Id;
 182       In_Tree : Project_Tree_Ref;
 183       Data    : in out Project_Data);
 184    --  Check attribute Externally_Built of project Project in project tree
 185    --  In_Tree and modify its data Data if it has the value "true".
 186
 187    procedure Check_Library_Attributes
 188      (Project   : Project_Id;
 189       In_Tree : Project_Tree_Ref;
 190       Data      : in out Project_Data);
 191    --  Check the library attributes of project Project in project tree In_Tree
 192    --  and modify its data Data accordingly.
 193
 194    procedure Check_Package_Naming
 195      (Project : Project_Id;
 196       In_Tree : Project_Tree_Ref;
 197       Data    : in out Project_Data);
 198    --  Check package Naming of project Project in project tree In_Tree and
 199    --  modify its data Data accordingly.
 200
 201    procedure Check_Programming_Languages
 202      (In_Tree : Project_Tree_Ref; Data : in out Project_Data);
 203    --  Check attribute Languages for the project with data Data in project
 204    --  tree In_Tree and set the components of Data for all the programming
 205    --  languages indicated in attribute Languages, if any.
 206
 207    function Check_Project
 208      (P            : Project_Id;
 209       Root_Project : Project_Id;
 210       In_Tree      : Project_Tree_Ref;
 211       Extending    : Boolean) return Boolean;
 212    --  Returns True if P is Root_Project or, if Extending is True, a project
 213    --  extended by Root_Project.
 214
 215    procedure Check_Stand_Alone_Library
 216      (Project   : Project_Id;
 217       In_Tree   : Project_Tree_Ref;
 218       Data      : in out Project_Data;
 219       Extending : Boolean);
 220    --  Check if project Project in project tree In_Tree is a Stand-Alone
 221    --  Library project, and modify its data Data accordingly if it is one.
 222
 223    function Compute_Directory_Last (Dir : String) return Natural;
 224    --  Return the index of the last significant character in Dir. This is used
 225    --  to avoid duplicates '/' at the end of directory names
 226
 227    function Body_Suffix_Of
 228      (Language   : Language_Index;
 229       In_Project : Project_Data;
 230       In_Tree    : Project_Tree_Ref)
 231       return String;
 232    --  Returns the suffix of sources of language Language in project In_Project
 233    --  in project tree In_Tree.
 234
 235    procedure Error_Msg
 236      (Project       : Project_Id;
 237       In_Tree       : Project_Tree_Ref;
 238       Msg           : String;
 239       Flag_Location : Source_Ptr);
 240    --  Output an error message. If Error_Report is null, simply call
 241    --  Prj.Err.Error_Msg. Otherwise, disregard Flag_Location and use
 242    --  Error_Report.
 243
 244    procedure Find_Sources
 245      (Project      : Project_Id;
 246       In_Tree      : Project_Tree_Ref;
 247       Data         : in out Project_Data;
 248       For_Language : Language_Index;
 249       Follow_Links : Boolean := False);
 250    --  Find all the sources in all of the source directories of a project for
 251    --  a specified language.
 252
 253    procedure Free_Ada_Naming_Exceptions;
 254    --  Free the internal hash tables used for checking naming exceptions
 255
 256    procedure Get_Directories
 257      (Project : Project_Id;
 258       In_Tree : Project_Tree_Ref;
 259       Data    : in out Project_Data);
 260    --  Get the object directory, the exec directory and the source directories
 261    --  of a project.
 262
 263    procedure Get_Mains
 264      (Project : Project_Id;
 265       In_Tree : Project_Tree_Ref;
 266       Data    : in out Project_Data);
 267    --  Get the mains of a project from attribute Main, if it exists, and put
 268    --  them in the project data.
 269
 270    procedure Get_Sources_From_File
 271      (Path     : String;
 272       Location : Source_Ptr;
 273       Project  : Project_Id;
 274       In_Tree  : Project_Tree_Ref);
 275    --  Get the list of sources from a text file and put them in hash table
 276    --  Source_Names.
 277
 278    procedure Get_Unit
 279      (Canonical_File_Name : Name_Id;
 280       Naming              : Naming_Data;
 281       Exception_Id        : out Ada_Naming_Exception_Id;
 282       Unit_Name           : out Name_Id;
 283       Unit_Kind           : out Spec_Or_Body;
 284       Needs_Pragma        : out Boolean);
 285    --  Find out, from a file name, the unit name, the unit kind and if a
 286    --  specific SFN pragma is needed. If the file name corresponds to no
 287    --  unit, then Unit_Name will be No_Name. If the file is a multi-unit source
 288    --  or an exception to the naming scheme, then Exception_Id is set to
 289    --  the unit or units that the source contains.
 290
 291    function Is_Illegal_Suffix
 292      (Suffix                          : String;
 293       Dot_Replacement_Is_A_Single_Dot : Boolean) return Boolean;
 294    --  Returns True if the string Suffix cannot be used as
 295    --  a spec suffix, a body suffix or a separate suffix.
 296
 297    procedure Locate_Directory
 298      (Name    : Name_Id;
 299       Parent  : Name_Id;
 300       Dir     : out Name_Id;
 301       Display : out Name_Id);
 302    --  Locate a directory (returns No_Name for Dir and Display if directory
 303    --  does not exist). Name is the directory name. Parent is the root
 304    --  directory, if Name is a relative path name. Dir is the canonical case
 305    --  path name of the directory, Display is the directory path name for
 306    --  display purposes.
 307
 308    procedure Look_For_Sources
 309      (Project      : Project_Id;
 310       In_Tree      : Project_Tree_Ref;
 311       Data         : in out Project_Data;
 312       Follow_Links : Boolean);
 313    --  Find all the sources of a project
 314
 315    function Path_Name_Of
 316      (File_Name : Name_Id;
 317       Directory : Name_Id) return String;
 318    --  Returns the path name of a (non project) file.
 319    --  Returns an empty string if file cannot be found.
 320
 321    procedure Prepare_Ada_Naming_Exceptions
 322      (List    : Array_Element_Id;
 323       In_Tree : Project_Tree_Ref;
 324       Kind    : Spec_Or_Body);
 325    --  Prepare the internal hash tables used for checking naming exceptions
 326    --  for Ada. Insert all elements of List in the tables.
 327
 328    function Project_Extends
 329      (Extending : Project_Id;
 330       Extended  : Project_Id;
 331       In_Tree   : Project_Tree_Ref) return Boolean;
 332    --  Returns True if Extending is extending Extended either directly or
 333    --  indirectly.
 334
 335    procedure Record_Ada_Source
 336      (File_Name       : Name_Id;
 337       Path_Name       : Name_Id;
 338       Project         : Project_Id;
 339       In_Tree         : Project_Tree_Ref;
 340       Data            : in out Project_Data;
 341       Location        : Source_Ptr;
 342       Current_Source  : in out String_List_Id;
 343       Source_Recorded : in out Boolean;
 344       Follow_Links    : Boolean);
 345    --  Put a unit in the list of units of a project, if the file name
 346    --  corresponds to a valid unit name.
 347
 348    procedure Record_Other_Sources
 349      (Project           : Project_Id;
 350       In_Tree           : Project_Tree_Ref;
 351       Data              : in out Project_Data;
 352       Language          : Language_Index;
 353       Naming_Exceptions : Boolean);
 354    --  Record the sources of a language in a project.
 355    --  When Naming_Exceptions is True, mark the found sources as such, to
 356    --  later remove those that are not named in a list of sources.
 357
 358    procedure Report_No_Ada_Sources
 359      (Project  : Project_Id;
 360       In_Tree  : Project_Tree_Ref;
 361       Location : Source_Ptr);
 362    --  Report an error or a warning depending on the value of When_No_Sources
 363
 364    procedure Show_Source_Dirs
 365      (Project : Project_Id; In_Tree : Project_Tree_Ref);
 366    --  List all the source directories of a project
 367
 368    function Suffix_For
 369      (Language : Language_Index;
 370       Naming   : Naming_Data;
 371       In_Tree  : Project_Tree_Ref) return Name_Id;
 372    --  Get the suffix for the source of a language from a package naming.
 373    --  If not specified, return the default for the language.
 374
 375    procedure Warn_If_Not_Sources
 376      (Project     : Project_Id;
 377       In_Tree     : Project_Tree_Ref;
 378       Conventions : Array_Element_Id;
 379       Specs       : Boolean;
 380       Extending   : Boolean);
 381    --  Check that individual naming conventions apply to immediate
 382    --  sources of the project; if not, issue a warning.
 383
 384    -------------------
 385    -- ALI_File_Name --
 386    -------------------
 387
 388    function ALI_File_Name (Source : String) return String is
 389    begin
 390       --  If the source name has an extension, then replace it with
 391       --  the ALI suffix.
 392
 393       for Index in reverse Source'First + 1 .. Source'Last loop
 394          if Source (Index) = '.' then
 395             return Source (Source'First .. Index - 1) & ALI_Suffix;
 396          end if;
 397       end loop;
 398
 399       --  If there is no dot, or if it is the first character, just add the
 400       --  ALI suffix.
 401
 402       return Source & ALI_Suffix;
 403    end ALI_File_Name;
 404
 405    -----------
 406    -- Check --
 407    -----------
 408
 409    procedure Check
 410      (Project         : Project_Id;
 411       In_Tree         : Project_Tree_Ref;
 412       Report_Error    : Put_Line_Access;
 413       Follow_Links    : Boolean;
 414       When_No_Sources : Error_Warning)
 415    is
 416       Data      : Project_Data := In_Tree.Projects.Table (Project);
 417       Extending : Boolean := False;
 418
 419    begin
 420       Nmsc.When_No_Sources := When_No_Sources;
 421       Error_Report := Report_Error;
 422
 423       Recursive_Dirs.Reset;
 424
 425       --  Object, exec and source directories
 426
 427       Get_Directories (Project, In_Tree, Data);
 428
 429       --  Get the programming languages
 430
 431       Check_Programming_Languages (In_Tree, Data);
 432
 433       --  Library attributes
 434
 435       Check_Library_Attributes (Project, In_Tree, Data);
 436
 437       Check_If_Externally_Built (Project, In_Tree, Data);
 438
 439       if Current_Verbosity = High then
 440          Show_Source_Dirs (Project, In_Tree);
 441       end if;
 442
 443       Check_Package_Naming (Project, In_Tree, Data);
 444
 445       Extending := Data.Extends /= No_Project;
 446
 447       Check_Naming_Scheme (Data, Project, In_Tree);
 448
 449       Prepare_Ada_Naming_Exceptions
 450         (Data.Naming.Bodies, In_Tree, Body_Part);
 451       Prepare_Ada_Naming_Exceptions
 452         (Data.Naming.Specs, In_Tree, Specification);
 453
 454       --  Find the sources
 455
 456       if Data.Source_Dirs /= Nil_String then
 457          Look_For_Sources (Project, In_Tree, Data, Follow_Links);
 458       end if;
 459
 460       if Data.Ada_Sources_Present then
 461
 462          --  Check that all individual naming conventions apply to sources of
 463          --  this project file.
 464
 465          Warn_If_Not_Sources
 466            (Project, In_Tree, Data.Naming.Bodies,
 467             Specs     => False,
 468             Extending => Extending);
 469          Warn_If_Not_Sources
 470            (Project, In_Tree, Data.Naming.Specs,
 471             Specs     => True,
 472             Extending => Extending);
 473       end if;
 474
 475       --  If it is a library project file, check if it is a standalone library
 476
 477       if Data.Library then
 478          Check_Stand_Alone_Library (Project, In_Tree, Data, Extending);
 479       end if;
 480
 481       --  Put the list of Mains, if any, in the project data
 482
 483       Get_Mains (Project, In_Tree, Data);
 484
 485       --  Update the project data in the Projects table
 486
 487       In_Tree.Projects.Table (Project) := Data;
 488
 489       Free_Ada_Naming_Exceptions;
 490    end Check;
 491
 492    --------------------
 493    -- Check_Ada_Name --
 494    --------------------
 495
 496    procedure Check_Ada_Name (Name : String; Unit : out Name_Id) is
 497       The_Name        : String := Name;
 498       Real_Name       : Name_Id;
 499       Need_Letter     : Boolean := True;
 500       Last_Underscore : Boolean := False;
 501       OK              : Boolean := The_Name'Length > 0;
 502
 503    begin
 504       To_Lower (The_Name);
 505
 506       Name_Len := The_Name'Length;
 507       Name_Buffer (1 .. Name_Len) := The_Name;
 508       Real_Name := Name_Find;
 509
 510       --  Check first that the given name is not an Ada reserved word
 511
 512       if Get_Name_Table_Byte (Real_Name) /= 0
 513         and then Real_Name /= Name_Project
 514         and then Real_Name /= Name_Extends
 515         and then Real_Name /= Name_External
 516       then
 517          Unit := No_Name;
 518
 519          if Current_Verbosity = High then
 520             Write_Str (The_Name);
 521             Write_Line (" is an Ada reserved word.");
 522          end if;
 523
 524          return;
 525       end if;
 526
 527       for Index in The_Name'Range loop
 528          if Need_Letter then
 529
 530             --  We need a letter (at the beginning, and following a dot),
 531             --  but we don't have one.
 532
 533             if Is_Letter (The_Name (Index)) then
 534                Need_Letter := False;
 535
 536             else
 537                OK := False;
 538
 539                if Current_Verbosity = High then
 540                   Write_Int  (Types.Int (Index));
 541                   Write_Str  (": '");
 542                   Write_Char (The_Name (Index));
 543                   Write_Line ("' is not a letter.");
 544                end if;
 545
 546                exit;
 547             end if;
 548
 549          elsif Last_Underscore
 550            and then (The_Name (Index) = '_' or else The_Name (Index) = '.')
 551          then
 552             --  Two underscores are illegal, and a dot cannot follow
 553             --  an underscore.
 554
 555             OK := False;
 556
 557             if Current_Verbosity = High then
 558                Write_Int  (Types.Int (Index));
 559                Write_Str  (": '");
 560                Write_Char (The_Name (Index));
 561                Write_Line ("' is illegal here.");
 562             end if;
 563
 564             exit;
 565
 566          elsif The_Name (Index) = '.' then
 567
 568             --  We need a letter after a dot
 569
 570             Need_Letter := True;
 571
 572          elsif The_Name (Index) = '_' then
 573             Last_Underscore := True;
 574
 575          else
 576             --  We need an letter or a digit
 577
 578             Last_Underscore := False;
 579
 580             if not Is_Alphanumeric (The_Name (Index)) then
 581                OK := False;
 582
 583                if Current_Verbosity = High then
 584                   Write_Int  (Types.Int (Index));
 585                   Write_Str  (": '");
 586                   Write_Char (The_Name (Index));
 587                   Write_Line ("' is not alphanumeric.");
 588                end if;
 589
 590                exit;
 591             end if;
 592          end if;
 593       end loop;
 594
 595       --  Cannot end with an underscore or a dot
 596
 597       OK := OK and then not Need_Letter and then not Last_Underscore;
 598
 599       if OK then
 600          Unit := Real_Name;
 601
 602       else
 603          --  Signal a problem with No_Name
 604
 605          Unit := No_Name;
 606       end if;
 607    end Check_Ada_Name;
 608
 609    --------------------------------------
 610    -- Check_Ada_Naming_Scheme_Validity --
 611    --------------------------------------
 612
 613    procedure Check_Ada_Naming_Scheme_Validity
 614      (Project : Project_Id;
 615       In_Tree : Project_Tree_Ref;
 616       Naming  : Naming_Data)
 617    is
 618    begin
 619       --  Only check if we are not using the Default naming scheme
 620
 621       if Naming /= In_Tree.Private_Part.Default_Naming then
 622          declare
 623             Dot_Replacement       : constant String :=
 624                                      Get_Name_String
 625                                        (Naming.Dot_Replacement);
 626
 627             Spec_Suffix : constant String :=
 628                                      Get_Name_String
 629                                        (Naming.Ada_Spec_Suffix);
 630
 631             Body_Suffix : constant String :=
 632                                      Get_Name_String
 633                                        (Naming.Ada_Body_Suffix);
 634
 635             Separate_Suffix       : constant String :=
 636                                      Get_Name_String
 637                                        (Naming.Separate_Suffix);
 638
 639          begin
 640             --  Dot_Replacement cannot
 641             --   - be empty
 642             --   - start or end with an alphanumeric
 643             --   - be a single '_'
 644             --   - start with an '_' followed by an alphanumeric
 645             --   - contain a '.' except if it is "."
 646
 647             if Dot_Replacement'Length = 0
 648               or else Is_Alphanumeric
 649                         (Dot_Replacement (Dot_Replacement'First))
 650               or else Is_Alphanumeric
 651                         (Dot_Replacement (Dot_Replacement'Last))
 652               or else (Dot_Replacement (Dot_Replacement'First) = '_'
 653                         and then
 654                         (Dot_Replacement'Length = 1
 655                           or else
 656                            Is_Alphanumeric
 657                              (Dot_Replacement (Dot_Replacement'First + 1))))
 658               or else (Dot_Replacement'Length > 1
 659                          and then
 660                            Index (Source => Dot_Replacement,
 661                                   Pattern => ".") /= 0)
 662             then
 663                Error_Msg
 664                  (Project, In_Tree,
 665                   '"' & Dot_Replacement &
 666                   """ is illegal for Dot_Replacement.",
 667                   Naming.Dot_Repl_Loc);
 668             end if;
 669
 670             --  Suffixes cannot
 671             --   - be empty
 672
 673             if Is_Illegal_Suffix
 674                  (Spec_Suffix, Dot_Replacement = ".")
 675             then
 676                Err_Vars.Error_Msg_Name_1 := Naming.Ada_Spec_Suffix;
 677                Error_Msg
 678                  (Project, In_Tree,
 679                   "{ is illegal for Spec_Suffix",
 680                   Naming.Spec_Suffix_Loc);
 681             end if;
 682
 683             if Is_Illegal_Suffix
 684                  (Body_Suffix, Dot_Replacement = ".")
 685             then
 686                Err_Vars.Error_Msg_Name_1 := Naming.Ada_Body_Suffix;
 687                Error_Msg
 688                  (Project, In_Tree,
 689                   "{ is illegal for Body_Suffix",
 690                   Naming.Body_Suffix_Loc);
 691             end if;
 692
 693             if Body_Suffix /= Separate_Suffix then
 694                if Is_Illegal_Suffix
 695                     (Separate_Suffix, Dot_Replacement = ".")
 696                then
 697                   Err_Vars.Error_Msg_Name_1 := Naming.Separate_Suffix;
 698                   Error_Msg
 699                     (Project, In_Tree,
 700                      "{ is illegal for Separate_Suffix",
 701                      Naming.Sep_Suffix_Loc);
 702                end if;
 703             end if;
 704
 705             --  Spec_Suffix cannot have the same termination as
 706             --  Body_Suffix or Separate_Suffix
 707
 708             if Spec_Suffix'Length <= Body_Suffix'Length
 709               and then
 710                 Body_Suffix (Body_Suffix'Last -
 711                              Spec_Suffix'Length + 1 ..
 712                              Body_Suffix'Last) = Spec_Suffix
 713             then
 714                Error_Msg
 715                  (Project, In_Tree,
 716                   "Body_Suffix (""" &
 717                   Body_Suffix &
 718                   """) cannot end with" &
 719                   " Spec_Suffix  (""" &
 720                   Spec_Suffix & """).",
 721                   Naming.Body_Suffix_Loc);
 722             end if;
 723
 724             if Body_Suffix /= Separate_Suffix
 725               and then Spec_Suffix'Length <= Separate_Suffix'Length
 726               and then
 727                 Separate_Suffix
 728                   (Separate_Suffix'Last - Spec_Suffix'Length + 1
 729                     ..
 730                    Separate_Suffix'Last) = Spec_Suffix
 731             then
 732                Error_Msg
 733                  (Project, In_Tree,
 734                   "Separate_Suffix (""" &
 735                   Separate_Suffix &
 736                   """) cannot end with" &
 737                   " Spec_Suffix (""" &
 738                   Spec_Suffix & """).",
 739                   Naming.Sep_Suffix_Loc);
 740             end if;
 741          end;
 742       end if;
 743    end Check_Ada_Naming_Scheme_Validity;
 744
 745    ----------------------
 746    -- Check_For_Source --
 747    ----------------------
 748
 749    procedure Check_For_Source
 750      (File_Name        : Name_Id;
 751       Path_Name        : Name_Id;
 752       Project          : Project_Id;
 753       In_Tree          : Project_Tree_Ref;
 754       Data             : in out Project_Data;
 755       Location         : Source_Ptr;
 756       Language         : Language_Index;
 757       Suffix           : String;
 758       Naming_Exception : Boolean)
 759    is
 760       Name : String := Get_Name_String (File_Name);
 761       Real_Location : Source_Ptr := Location;
 762
 763    begin
 764       Canonical_Case_File_Name (Name);
 765
 766       --  A file is a source of a language if Naming_Exception is True (case
 767       --  of naming exceptions) or if its file name ends with the suffix.
 768
 769       if Naming_Exception or else
 770         (Name'Length > Suffix'Length and then
 771          Name (Name'Last - Suffix'Length + 1 .. Name'Last) = Suffix)
 772       then
 773          if Real_Location = No_Location then
 774             Real_Location := Data.Location;
 775          end if;
 776
 777          declare
 778             Path : String := Get_Name_String (Path_Name);
 779
 780             Path_Id : Name_Id;
 781             --  The path name id (in canonical case)
 782
 783             File_Id : Name_Id;
 784             --  The file name id (in canonical case)
 785
 786             Obj_Id : Name_Id;
 787             --  The object file name
 788
 789             Obj_Path_Id : Name_Id;
 790             --  The object path name
 791
 792             Dep_Id : Name_Id;
 793             --  The dependency file name
 794
 795             Dep_Path_Id : Name_Id;
 796             --  The dependency path name
 797
 798             Dot_Pos : Natural := 0;
 799             --  Position of the last dot in Name
 800
 801             Source    : Other_Source;
 802             Source_Id : Other_Source_Id := Data.First_Other_Source;
 803
 804          begin
 805             Canonical_Case_File_Name (Path);
 806
 807             --  Get the file name id
 808
 809             Name_Len := Name'Length;
 810             Name_Buffer (1 .. Name_Len) := Name;
 811             File_Id := Name_Find;
 812
 813             --  Get the path name id
 814
 815             Name_Len := Path'Length;
 816             Name_Buffer (1 .. Name_Len) := Path;
 817             Path_Id := Name_Find;
 818
 819             --  Find the position of the last dot
 820
 821             for J in reverse Name'Range loop
 822                if Name (J) = '.' then
 823                   Dot_Pos := J;
 824                   exit;
 825                end if;
 826             end loop;
 827
 828             if Dot_Pos <= Name'First then
 829                Dot_Pos := Name'Last + 1;
 830             end if;
 831
 832             --  Compute the object file name
 833
 834             Get_Name_String (File_Id);
 835             Name_Len := Dot_Pos - Name'First;
 836
 837             for J in Object_Suffix'Range loop
 838                Name_Len := Name_Len + 1;
 839                Name_Buffer (Name_Len) := Object_Suffix (J);
 840             end loop;
 841
 842             Obj_Id := Name_Find;
 843
 844             --  Compute the object path name
 845
 846             Get_Name_String (Data.Object_Directory);
 847
 848             if Name_Buffer (Name_Len) /= Directory_Separator and then
 849               Name_Buffer (Name_Len) /= '/'
 850             then
 851                Name_Len := Name_Len + 1;
 852                Name_Buffer (Name_Len) := Directory_Separator;
 853             end if;
 854
 855             Add_Str_To_Name_Buffer (Get_Name_String (Obj_Id));
 856             Obj_Path_Id := Name_Find;
 857
 858             --  Compute the dependency file name
 859
 860             Get_Name_String (File_Id);
 861             Name_Len := Dot_Pos - Name'First + 1;
 862             Name_Buffer (Name_Len) := '.';
 863             Name_Len := Name_Len + 1;
 864             Name_Buffer (Name_Len) := 'd';
 865             Dep_Id := Name_Find;
 866
 867             --  Compute the dependency path name
 868
 869             Get_Name_String (Data.Object_Directory);
 870
 871             if Name_Buffer (Name_Len) /= Directory_Separator and then
 872               Name_Buffer (Name_Len) /= '/'
 873             then
 874                Name_Len := Name_Len + 1;
 875                Name_Buffer (Name_Len) := Directory_Separator;
 876             end if;
 877
 878             Add_Str_To_Name_Buffer (Get_Name_String (Dep_Id));
 879             Dep_Path_Id := Name_Find;
 880
 881             --  Check if source is already in the list of source for this
 882             --  project: it may have already been specified as a naming
 883             --  exception for the same language or an other language, or
 884             --  they may be two identical file names in different source
 885             --  directories.
 886
 887             while Source_Id /= No_Other_Source loop
 888                Source := In_Tree.Other_Sources.Table (Source_Id);
 889
 890                if Source.File_Name = File_Id then
 891
 892                   --  Two sources of different languages cannot have the same
 893                   --  file name.
 894
 895                   if Source.Language /= Language then
 896                      Error_Msg_Name_1 := File_Name;
 897                      Error_Msg
 898                        (Project, In_Tree,
 899                         "{ cannot be a source of several languages",
 900                         Real_Location);
 901                      return;
 902
 903                   --  No problem if a file has already been specified as
 904                   --  a naming exception of this language.
 905
 906                   elsif Source.Path_Name = Path_Id then
 907
 908                      --  Reset the naming exception flag, if this is not a
 909                      --  naming exception.
 910
 911                      if not Naming_Exception then
 912                         In_Tree.Other_Sources.Table
 913                           (Source_Id).Naming_Exception := False;
 914                      end if;
 915
 916                      return;
 917
 918                   --  There are several files with the same names, but the
 919                   --  order of the source directories is known (no /**):
 920                   --  only the first one encountered is kept, the other ones
 921                   --  are ignored.
 922
 923                   elsif Data.Known_Order_Of_Source_Dirs then
 924                      return;
 925
 926                   --  But it is an error if the order of the source directories
 927                   --  is not known.
 928
 929                   else
 930                      Error_Msg_Name_1 := File_Name;
 931                      Error_Msg
 932                        (Project, In_Tree,
 933                         "{ is found in several source directories",
 934                         Real_Location);
 935                      return;
 936                   end if;
 937
 938                --  Two sources with different file names cannot have the same
 939                --  object file name.
 940
 941                elsif Source.Object_Name = Obj_Id then
 942                   Error_Msg_Name_1 := File_Id;
 943                   Error_Msg_Name_2 := Source.File_Name;
 944                   Error_Msg_Name_3 := Obj_Id;
 945                   Error_Msg
 946                        (Project, In_Tree,
 947                         "{ and { have the same object file {",
 948                         Real_Location);
 949                      return;
 950                end if;
 951
 952                Source_Id := Source.Next;
 953             end loop;
 954
 955             if Current_Verbosity = High then
 956                Write_Str ("      found ");
 957                Display_Language_Name (Language);
 958                Write_Str (" source """);
 959                Write_Str (Get_Name_String (File_Name));
 960                Write_Line ("""");
 961                Write_Str ("      object path = ");
 962                Write_Line (Get_Name_String (Obj_Path_Id));
 963             end if;
 964
 965             --  Create the Other_Source record
 966
 967             Source :=
 968               (Language         => Language,
 969                File_Name        => File_Id,
 970                Path_Name        => Path_Id,
 971                Source_TS        => File_Stamp (Path_Id),
 972                Object_Name      => Obj_Id,
 973                Object_Path      => Obj_Path_Id,
 974                Object_TS        => File_Stamp (Obj_Path_Id),
 975                Dep_Name         => Dep_Id,
 976                Dep_Path         => Dep_Path_Id,
 977                Dep_TS           => File_Stamp (Dep_Path_Id),
 978                Naming_Exception => Naming_Exception,
 979                Next             => No_Other_Source);
 980
 981             --  And add it to the Other_Sources table
 982
 983             Other_Source_Table.Increment_Last
 984               (In_Tree.Other_Sources);
 985             In_Tree.Other_Sources.Table
 986               (Other_Source_Table.Last (In_Tree.Other_Sources)) :=
 987                  Source;
 988
 989             --  There are sources of languages other than Ada in this project
 990
 991             Data.Other_Sources_Present := True;
 992
 993             --  And there are sources of this language in this project
 994
 995             Set (Language, True, Data, In_Tree);
 996
 997             --  Add this source to the list of sources of languages other than
 998             --  Ada of the project.
 999
1000             if Data.First_Other_Source = No_Other_Source then
1001                Data.First_Other_Source :=
1002                  Other_Source_Table.Last (In_Tree.Other_Sources);
1003
1004             else
1005                In_Tree.Other_Sources.Table (Data.Last_Other_Source).Next :=
1006                  Other_Source_Table.Last (In_Tree.Other_Sources);
1007             end if;
1008
1009             Data.Last_Other_Source :=
1010               Other_Source_Table.Last (In_Tree.Other_Sources);
1011          end;
1012       end if;
1013    end Check_For_Source;
1014
1015    -------------------------------
1016    -- Check_If_Externally_Built --
1017    -------------------------------
1018
1019    procedure Check_If_Externally_Built
1020      (Project : Project_Id;
1021       In_Tree : Project_Tree_Ref;
1022       Data    : in out Project_Data)
1023    is
1024       Externally_Built : constant Variable_Value :=
1025                            Util.Value_Of
1026                             (Name_Externally_Built,
1027                              Data.Decl.Attributes, In_Tree);
1028
1029    begin
1030       if not Externally_Built.Default then
1031          Get_Name_String (Externally_Built.Value);
1032          To_Lower (Name_Buffer (1 .. Name_Len));
1033
1034          if Name_Buffer (1 .. Name_Len) = "true" then
1035             Data.Externally_Built := True;
1036
1037          elsif Name_Buffer (1 .. Name_Len) /= "false" then
1038             Error_Msg (Project, In_Tree,
1039                        "Externally_Built may only be true or false",
1040                        Externally_Built.Location);
1041          end if;
1042       end if;
1043
1044       if Current_Verbosity = High then
1045          Write_Str ("Project is ");
1046
1047          if not Data.Externally_Built then
1048             Write_Str ("not ");
1049          end if;
1050
1051          Write_Line ("externally built.");
1052       end if;
1053    end Check_If_Externally_Built;
1054
1055    -----------------------------
1056    -- Check_Naming_Scheme --
1057    -----------------------------
1058
1059    procedure Check_Naming_Scheme
1060      (Data    : in out Project_Data;
1061       Project : Project_Id;
1062       In_Tree : Project_Tree_Ref)
1063    is
1064       Naming_Id : constant Package_Id :=
1065                     Util.Value_Of (Name_Naming, Data.Decl.Packages, In_Tree);
1066
1067       Naming : Package_Element;
1068
1069       procedure Check_Unit_Names (List : Array_Element_Id);
1070       --  Check that a list of unit names contains only valid names
1071
1072       ----------------------
1073       -- Check_Unit_Names --
1074       ----------------------
1075
1076       procedure Check_Unit_Names (List : Array_Element_Id) is
1077          Current   : Array_Element_Id := List;
1078          Element   : Array_Element;
1079          Unit_Name : Name_Id;
1080
1081       begin
1082          --  Loop through elements of the string list
1083
1084          while Current /= No_Array_Element loop
1085             Element := In_Tree.Array_Elements.Table (Current);
1086
1087             --  Put file name in canonical case
1088
1089             Get_Name_String (Element.Value.Value);
1090             Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1091             Element.Value.Value := Name_Find;
1092
1093             --  Check that it contains a valid unit name
1094
1095             Get_Name_String (Element.Index);
1096             Check_Ada_Name (Name_Buffer (1 .. Name_Len), Unit_Name);
1097
1098             if Unit_Name = No_Name then
1099                Err_Vars.Error_Msg_Name_1 := Element.Index;
1100                Error_Msg
1101                  (Project, In_Tree,
1102                   "{ is not a valid unit name.",
1103                   Element.Value.Location);
1104
1105             else
1106                if Current_Verbosity = High then
1107                   Write_Str ("    Unit (""");
1108                   Write_Str (Get_Name_String (Unit_Name));
1109                   Write_Line (""")");
1110                end if;
1111
1112                Element.Index := Unit_Name;
1113                In_Tree.Array_Elements.Table (Current) := Element;
1114             end if;
1115
1116             Current := Element.Next;
1117          end loop;
1118       end Check_Unit_Names;
1119
1120    --  Start of processing for Check_Naming_Scheme
1121
1122    begin
1123       --  If there is a package Naming, we will put in Data.Naming what is in
1124       --  this package Naming.
1125
1126       if Naming_Id /= No_Package then
1127          Naming := In_Tree.Packages.Table (Naming_Id);
1128
1129          if Current_Verbosity = High then
1130             Write_Line ("Checking ""Naming"" for Ada.");
1131          end if;
1132
1133          declare
1134             Bodies : constant Array_Element_Id :=
1135                        Util.Value_Of (Name_Body, Naming.Decl.Arrays, In_Tree);
1136
1137             Specs : constant Array_Element_Id :=
1138                       Util.Value_Of (Name_Spec, Naming.Decl.Arrays, In_Tree);
1139
1140          begin
1141             if Bodies /= No_Array_Element then
1142
1143                --  We have elements in the array Body_Part
1144
1145                if Current_Verbosity = High then
1146                   Write_Line ("Found Bodies.");
1147                end if;
1148
1149                Data.Naming.Bodies := Bodies;
1150                Check_Unit_Names (Bodies);
1151
1152             else
1153                if Current_Verbosity = High then
1154                   Write_Line ("No Bodies.");
1155                end if;
1156             end if;
1157
1158             if Specs /= No_Array_Element then
1159
1160                --  We have elements in the array Specs
1161
1162                if Current_Verbosity = High then
1163                   Write_Line ("Found Specs.");
1164                end if;
1165
1166                Data.Naming.Specs := Specs;
1167                Check_Unit_Names (Specs);
1168
1169             else
1170                if Current_Verbosity = High then
1171                   Write_Line ("No Specs.");
1172                end if;
1173             end if;
1174          end;
1175
1176          --  We are now checking if variables Dot_Replacement, Casing,
1177          --  Spec_Suffix, Body_Suffix and/or Separate_Suffix
1178          --  exist.
1179
1180          --  For each variable, if it does not exist, we do nothing,
1181          --  because we already have the default.
1182
1183          --  Check Dot_Replacement
1184
1185          declare
1186             Dot_Replacement : constant Variable_Value :=
1187                                 Util.Value_Of
1188                                   (Name_Dot_Replacement,
1189                                    Naming.Decl.Attributes, In_Tree);
1190
1191          begin
1192             pragma Assert (Dot_Replacement.Kind = Single,
1193                            "Dot_Replacement is not a single string");
1194
1195             if not Dot_Replacement.Default then
1196                Get_Name_String (Dot_Replacement.Value);
1197
1198                if Name_Len = 0 then
1199                   Error_Msg
1200                     (Project, In_Tree,
1201                      "Dot_Replacement cannot be empty",
1202                      Dot_Replacement.Location);
1203
1204                else
1205                   Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1206                   Data.Naming.Dot_Replacement := Name_Find;
1207                   Data.Naming.Dot_Repl_Loc := Dot_Replacement.Location;
1208                end if;
1209             end if;
1210          end;
1211
1212          if Current_Verbosity = High then
1213             Write_Str  ("  Dot_Replacement = """);
1214             Write_Str  (Get_Name_String (Data.Naming.Dot_Replacement));
1215             Write_Char ('"');
1216             Write_Eol;
1217          end if;
1218
1219          --  Check Casing
1220
1221          declare
1222             Casing_String : constant Variable_Value :=
1223                               Util.Value_Of
1224                                 (Name_Casing, Naming.Decl.Attributes, In_Tree);
1225
1226          begin
1227             pragma Assert (Casing_String.Kind = Single,
1228                            "Casing is not a single string");
1229
1230             if not Casing_String.Default then
1231                declare
1232                   Casing_Image : constant String :=
1233                                    Get_Name_String (Casing_String.Value);
1234                begin
1235                   declare
1236                      Casing_Value : constant Casing_Type :=
1237                                       Value (Casing_Image);
1238                   begin
1239                      Data.Naming.Casing := Casing_Value;
1240                   end;
1241
1242                exception
1243                   when Constraint_Error =>
1244                      if Casing_Image'Length = 0 then
1245                         Error_Msg
1246                           (Project, In_Tree,
1247                            "Casing cannot be an empty string",
1248                            Casing_String.Location);
1249
1250                      else
1251                         Name_Len := Casing_Image'Length;
1252                         Name_Buffer (1 .. Name_Len) := Casing_Image;
1253                         Err_Vars.Error_Msg_Name_1 := Name_Find;
1254                         Error_Msg
1255                           (Project, In_Tree,
1256                            "{ is not a correct Casing",
1257                            Casing_String.Location);
1258                      end if;
1259                end;
1260             end if;
1261          end;
1262
1263          if Current_Verbosity = High then
1264             Write_Str  ("  Casing = ");
1265             Write_Str  (Image (Data.Naming.Casing));
1266             Write_Char ('.');
1267             Write_Eol;
1268          end if;
1269
1270          --  Check Spec_Suffix
1271
1272          declare
1273             Ada_Spec_Suffix : constant Variable_Value :=
1274                                 Prj.Util.Value_Of
1275                                   (Index     => Name_Ada,
1276                                    Src_Index => 0,
1277                                    In_Array  => Data.Naming.Spec_Suffix,
1278                                    In_Tree   => In_Tree);
1279
1280          begin
1281             if Ada_Spec_Suffix.Kind = Single
1282               and then Get_Name_String (Ada_Spec_Suffix.Value) /= ""
1283             then
1284                Get_Name_String (Ada_Spec_Suffix.Value);
1285                Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1286                Data.Naming.Ada_Spec_Suffix := Name_Find;
1287                Data.Naming.Spec_Suffix_Loc := Ada_Spec_Suffix.Location;
1288
1289             else
1290                Data.Naming.Ada_Spec_Suffix := Default_Ada_Spec_Suffix;
1291             end if;
1292          end;
1293
1294          if Current_Verbosity = High then
1295             Write_Str  ("  Spec_Suffix = """);
1296             Write_Str  (Get_Name_String (Data.Naming.Ada_Spec_Suffix));
1297             Write_Char ('"');
1298             Write_Eol;
1299          end if;
1300
1301          --  Check Body_Suffix
1302
1303          declare
1304             Ada_Body_Suffix : constant Variable_Value :=
1305               Prj.Util.Value_Of
1306                 (Index     => Name_Ada,
1307                  Src_Index => 0,
1308                  In_Array  => Data.Naming.Body_Suffix,
1309                  In_Tree   => In_Tree);
1310
1311          begin
1312             if Ada_Body_Suffix.Kind = Single
1313               and then Get_Name_String (Ada_Body_Suffix.Value) /= ""
1314             then
1315                Get_Name_String (Ada_Body_Suffix.Value);
1316                Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1317                Data.Naming.Ada_Body_Suffix := Name_Find;
1318                Data.Naming.Body_Suffix_Loc := Ada_Body_Suffix.Location;
1319
1320             else
1321                Data.Naming.Ada_Body_Suffix := Default_Ada_Body_Suffix;
1322             end if;
1323          end;
1324
1325          if Current_Verbosity = High then
1326             Write_Str  ("  Body_Suffix = """);
1327             Write_Str  (Get_Name_String (Data.Naming.Ada_Body_Suffix));
1328             Write_Char ('"');
1329             Write_Eol;
1330          end if;
1331
1332          --  Check Separate_Suffix
1333
1334          declare
1335             Ada_Sep_Suffix : constant Variable_Value :=
1336                                Prj.Util.Value_Of
1337                                  (Variable_Name => Name_Separate_Suffix,
1338                                   In_Variables  => Naming.Decl.Attributes,
1339                                   In_Tree       => In_Tree);
1340
1341          begin
1342             if Ada_Sep_Suffix.Default then
1343                Data.Naming.Separate_Suffix :=
1344                  Data.Naming.Ada_Body_Suffix;
1345
1346             else
1347                Get_Name_String (Ada_Sep_Suffix.Value);
1348
1349                if Name_Len = 0 then
1350                   Error_Msg
1351                     (Project, In_Tree,
1352                      "Separate_Suffix cannot be empty",
1353                      Ada_Sep_Suffix.Location);
1354
1355                else
1356                   Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
1357                   Data.Naming.Separate_Suffix := Name_Find;
1358                   Data.Naming.Sep_Suffix_Loc  := Ada_Sep_Suffix.Location;
1359                end if;
1360             end if;
1361          end;
1362
1363          if Current_Verbosity = High then
1364             Write_Str  ("  Separate_Suffix = """);
1365             Write_Str  (Get_Name_String (Data.Naming.Separate_Suffix));
1366             Write_Char ('"');
1367             Write_Eol;
1368          end if;
1369
1370          --  Check if Data.Naming is valid
1371
1372          Check_Ada_Naming_Scheme_Validity (Project, In_Tree, Data.Naming);
1373
1374       else
1375          Data.Naming.Ada_Spec_Suffix := Default_Ada_Spec_Suffix;
1376          Data.Naming.Ada_Body_Suffix := Default_Ada_Body_Suffix;
1377          Data.Naming.Separate_Suffix := Default_Ada_Body_Suffix;
1378       end if;
1379    end Check_Naming_Scheme;
1380
1381    ------------------------------
1382    -- Check_Library_Attributes --
1383    ------------------------------
1384
1385    procedure Check_Library_Attributes
1386      (Project : Project_Id;
1387       In_Tree : Project_Tree_Ref;
1388       Data    : in out Project_Data)
1389    is
1390       Attributes : constant Prj.Variable_Id := Data.Decl.Attributes;
1391
1392       Lib_Dir : constant Prj.Variable_Value :=
1393                   Prj.Util.Value_Of
1394                     (Snames.Name_Library_Dir, Attributes, In_Tree);
1395
1396       Lib_Name : constant Prj.Variable_Value :=
1397                    Prj.Util.Value_Of
1398                      (Snames.Name_Library_Name, Attributes, In_Tree);
1399
1400       Lib_Version : constant Prj.Variable_Value :=
1401                       Prj.Util.Value_Of
1402                         (Snames.Name_Library_Version, Attributes, In_Tree);
1403
1404       Lib_ALI_Dir : constant Prj.Variable_Value :=
1405                       Prj.Util.Value_Of
1406                         (Snames.Name_Library_Ali_Dir, Attributes, In_Tree);
1407
1408       The_Lib_Kind : constant Prj.Variable_Value :=
1409                        Prj.Util.Value_Of
1410                          (Snames.Name_Library_Kind, Attributes, In_Tree);
1411
1412    begin
1413       --  Special case of extending project
1414
1415       if Data.Extends /= No_Project then
1416          declare
1417             Extended_Data : constant Project_Data :=
1418                            In_Tree.Projects.Table (Data.Extends);
1419
1420          begin
1421             --  If the project extended is a library project, we inherit
1422             --  the library name, if it is not redefined; we check that
1423             --  the library directory is specified; and we reset the
1424             --  library flag for the extended project.
1425
1426             if Extended_Data.Library then
1427                if Lib_Name.Default then
1428                   Data.Library_Name := Extended_Data.Library_Name;
1429                end if;
1430
1431                if Lib_Dir.Default then
1432                   if not Data.Virtual then
1433                      Error_Msg
1434                        (Project, In_Tree,
1435                         "a project extending a library project must " &
1436                         "specify an attribute Library_Dir",
1437                         Data.Location);
1438                   end if;
1439                end if;
1440
1441                In_Tree.Projects.Table (Data.Extends).Library :=
1442                  False;
1443             end if;
1444          end;
1445       end if;
1446
1447       pragma Assert (Lib_Dir.Kind = Single);
1448
1449       if Lib_Dir.Value = Empty_String then
1450          if Current_Verbosity = High then
1451             Write_Line ("No library directory");
1452          end if;
1453
1454       else
1455          --  Find path name, check that it is a directory
1456
1457          Locate_Directory
1458            (Lib_Dir.Value, Data.Display_Directory,
1459             Data.Library_Dir, Data.Display_Library_Dir);
1460
1461          if Data.Library_Dir = No_Name then
1462
1463             --  Get the absolute name of the library directory that
1464             --  does not exist, to report an error.
1465
1466             declare
1467                Dir_Name : constant String := Get_Name_String (Lib_Dir.Value);
1468
1469             begin
1470                if Is_Absolute_Path (Dir_Name) then
1471                   Err_Vars.Error_Msg_Name_1 := Lib_Dir.Value;
1472
1473                else
1474                   Get_Name_String (Data.Display_Directory);
1475
1476                   if Name_Buffer (Name_Len) /= Directory_Separator then
1477                      Name_Len := Name_Len + 1;
1478                      Name_Buffer (Name_Len) := Directory_Separator;
1479                   end if;
1480
1481                   Name_Buffer
1482                     (Name_Len + 1 .. Name_Len + Dir_Name'Length) :=
1483                     Dir_Name;
1484                   Name_Len := Name_Len + Dir_Name'Length;
1485                   Err_Vars.Error_Msg_Name_1 := Name_Find;
1486                end if;
1487
1488                --  Report the error
1489
1490                Error_Msg
1491                  (Project, In_Tree,
1492                   "library directory { does not exist",
1493                   Lib_Dir.Location);
1494             end;
1495
1496          --  The library directory cannot be the same as the Object directory
1497
1498          elsif Data.Library_Dir = Data.Object_Directory then
1499             Error_Msg
1500               (Project, In_Tree,
1501                "library directory cannot be the same " &
1502                "as object directory",
1503                Lib_Dir.Location);
1504             Data.Library_Dir := No_Name;
1505             Data.Display_Library_Dir := No_Name;
1506
1507          else
1508             declare
1509                OK       : Boolean := True;
1510                Dirs_Id  : String_List_Id;
1511                Dir_Elem : String_Element;
1512
1513             begin
1514                --  The library directory cannot be the same as a source
1515                --  directory of the current project.
1516
1517                Dirs_Id := Data.Source_Dirs;
1518                while Dirs_Id /= Nil_String loop
1519                   Dir_Elem := In_Tree.String_Elements.Table (Dirs_Id);
1520                   Dirs_Id  := Dir_Elem.Next;
1521
1522                   if Data.Library_Dir = Dir_Elem.Value then
1523                      Err_Vars.Error_Msg_Name_1 := Dir_Elem.Value;
1524                      Error_Msg
1525                        (Project, In_Tree,
1526                         "library directory cannot be the same " &
1527                         "as source directory {",
1528                         Lib_Dir.Location);
1529                      OK := False;
1530                      exit;
1531                   end if;
1532                end loop;
1533
1534                if OK then
1535
1536                   --  The library directory cannot be the same as a source
1537                   --  directory of another project either.
1538
1539                   Project_Loop :
1540                   for Pid in 1 .. Project_Table.Last (In_Tree.Projects) loop
1541                      if Pid /= Project then
1542                         Dirs_Id := In_Tree.Projects.Table (Pid).Source_Dirs;
1543
1544                         Dir_Loop : while Dirs_Id /= Nil_String loop
1545                            Dir_Elem := In_Tree.String_Elements.Table (Dirs_Id);
1546                            Dirs_Id  := Dir_Elem.Next;
1547
1548                            if Data.Library_Dir = Dir_Elem.Value then
1549                               Err_Vars.Error_Msg_Name_1 := Dir_Elem.Value;
1550                               Err_Vars.Error_Msg_Name_2 :=
1551                                 In_Tree.Projects.Table (Pid).Name;
1552
1553                               Error_Msg
1554                                 (Project, In_Tree,
1555                                  "library directory cannot be the same " &
1556                                  "as source directory { of project {",
1557                                  Lib_Dir.Location);
1558                               OK := False;
1559                               exit Project_Loop;
1560                            end if;
1561                         end loop Dir_Loop;
1562                      end if;
1563                   end loop Project_Loop;
1564                end if;
1565
1566                if not OK then
1567                   Data.Library_Dir := No_Name;
1568                   Data.Display_Library_Dir := No_Name;
1569
1570                elsif Current_Verbosity = High then
1571
1572                   --  Display the Library directory in high verbosity
1573
1574                   Write_Str ("Library directory =""");
1575                   Write_Str (Get_Name_String (Data.Display_Library_Dir));
1576                   Write_Line ("""");
1577                end if;
1578             end;
1579          end if;
1580       end if;
1581
1582       pragma Assert (Lib_Name.Kind = Single);
1583
1584       if Lib_Name.Value = Empty_String then
1585          if Current_Verbosity = High
1586            and then Data.Library_Name = No_Name
1587          then
1588             Write_Line ("No library name");
1589          end if;
1590
1591       else
1592          --  There is no restriction on the syntax of library names
1593
1594          Data.Library_Name := Lib_Name.Value;
1595       end if;
1596
1597       if Data.Library_Name /= No_Name
1598         and then Current_Verbosity = High
1599       then
1600          Write_Str ("Library name = """);
1601          Write_Str (Get_Name_String (Data.Library_Name));
1602          Write_Line ("""");
1603       end if;
1604
1605       Data.Library :=
1606         Data.Library_Dir /= No_Name
1607         and then
1608       Data.Library_Name /= No_Name;
1609
1610       if Data.Library then
1611          if MLib.Tgt.Support_For_Libraries = MLib.Tgt.None then
1612             Error_Msg
1613               (Project, In_Tree,
1614                "?libraries are not supported on this platform",
1615                Lib_Name.Location);
1616             Data.Library := False;
1617
1618          else
1619             if Lib_ALI_Dir.Value = Empty_String then
1620                if Current_Verbosity = High then
1621                   Write_Line ("No library 'A'L'I directory specified");
1622                end if;
1623                Data.Library_ALI_Dir := Data.Library_Dir;
1624                Data.Display_Library_ALI_Dir := Data.Display_Library_Dir;
1625
1626             else
1627                --  Find path name, check that it is a directory
1628
1629                Locate_Directory
1630                  (Lib_ALI_Dir.Value, Data.Display_Directory,
1631                   Data.Library_ALI_Dir, Data.Display_Library_ALI_Dir);
1632
1633                if Data.Library_ALI_Dir = No_Name then
1634
1635                   --  Get the absolute name of the library ALI directory that
1636                   --  does not exist, to report an error.
1637
1638                   declare
1639                      Dir_Name : constant String :=
1640                                   Get_Name_String (Lib_ALI_Dir.Value);
1641
1642                   begin
1643                      if Is_Absolute_Path (Dir_Name) then
1644                         Err_Vars.Error_Msg_Name_1 := Lib_Dir.Value;
1645
1646                      else
1647                         Get_Name_String (Data.Display_Directory);
1648
1649                         if Name_Buffer (Name_Len) /= Directory_Separator then
1650                            Name_Len := Name_Len + 1;
1651                            Name_Buffer (Name_Len) := Directory_Separator;
1652                         end if;
1653
1654                         Name_Buffer
1655                           (Name_Len + 1 .. Name_Len + Dir_Name'Length) :=
1656                           Dir_Name;
1657                         Name_Len := Name_Len + Dir_Name'Length;
1658                         Err_Vars.Error_Msg_Name_1 := Name_Find;
1659                      end if;
1660
1661                      --  Report the error
1662
1663                      Error_Msg
1664                        (Project, In_Tree,
1665                         "library 'A'L'I directory { does not exist",
1666                         Lib_ALI_Dir.Location);
1667                   end;
1668                end if;
1669
1670                if Data.Library_ALI_Dir /= Data.Library_Dir then
1671
1672                   --  The library ALI directory cannot be the same as the
1673                   --  Object directory.
1674
1675                   if Data.Library_ALI_Dir = Data.Object_Directory then
1676                      Error_Msg
1677                        (Project, In_Tree,
1678                         "library 'A'L'I directory cannot be the same " &
1679                         "as object directory",
1680                         Lib_ALI_Dir.Location);
1681                      Data.Library_ALI_Dir := No_Name;
1682                      Data.Display_Library_ALI_Dir := No_Name;
1683
1684                   else
1685                      declare
1686                         OK       : Boolean := True;
1687                         Dirs_Id  : String_List_Id;
1688                         Dir_Elem : String_Element;
1689
1690                      begin
1691                         --  The library ALI directory cannot be the same as
1692                         --  a source directory of the current project.
1693
1694                         Dirs_Id := Data.Source_Dirs;
1695                         while Dirs_Id /= Nil_String loop
1696                            Dir_Elem := In_Tree.String_Elements.Table (Dirs_Id);
1697                            Dirs_Id  := Dir_Elem.Next;
1698
1699                            if Data.Library_ALI_Dir = Dir_Elem.Value then
1700                               Err_Vars.Error_Msg_Name_1 := Dir_Elem.Value;
1701                               Error_Msg
1702                                 (Project, In_Tree,
1703                                  "library 'A'L'I directory cannot be " &
1704                                  "the same as source directory {",
1705                                  Lib_ALI_Dir.Location);
1706                               OK := False;
1707                               exit;
1708                            end if;
1709                         end loop;
1710
1711                         if OK then
1712
1713                            --  The library ALI directory cannot be the same as
1714                            --  a source directory of another project either.
1715
1716                            ALI_Project_Loop :
1717                            for
1718                              Pid in 1 .. Project_Table.Last (In_Tree.Projects)
1719                            loop
1720                               if Pid /= Project then
1721                                  Dirs_Id :=
1722                                    In_Tree.Projects.Table (Pid).Source_Dirs;
1723
1724                                  ALI_Dir_Loop :
1725                                  while Dirs_Id /= Nil_String loop
1726                                     Dir_Elem :=
1727                                       In_Tree.String_Elements.Table (Dirs_Id);
1728                                     Dirs_Id  := Dir_Elem.Next;
1729
1730                                     if
1731                                       Data.Library_ALI_Dir = Dir_Elem.Value
1732                                     then
1733                                        Err_Vars.Error_Msg_Name_1 :=
1734                                          Dir_Elem.Value;
1735                                        Err_Vars.Error_Msg_Name_2 :=
1736                                          In_Tree.Projects.Table (Pid).Name;
1737
1738                                        Error_Msg
1739                                          (Project, In_Tree,
1740                                           "library 'A'L'I directory cannot " &
1741                                           "be the same as source directory " &
1742                                           "{ of project {",
1743                                           Lib_ALI_Dir.Location);
1744                                        OK := False;
1745                                        exit ALI_Project_Loop;
1746                                     end if;
1747                                  end loop ALI_Dir_Loop;
1748                               end if;
1749                            end loop ALI_Project_Loop;
1750                         end if;
1751
1752                         if not OK then
1753                            Data.Library_ALI_Dir := No_Name;
1754                            Data.Display_Library_ALI_Dir := No_Name;
1755
1756                         elsif Current_Verbosity = High then
1757
1758                            --  Display the Library ALI directory in high
1759                            --  verbosity.
1760
1761                            Write_Str ("Library ALI directory =""");
1762                            Write_Str
1763                              (Get_Name_String (Data.Display_Library_ALI_Dir));
1764                            Write_Line ("""");
1765                         end if;
1766                      end;
1767                   end if;
1768                end if;
1769             end if;
1770
1771             pragma Assert (Lib_Version.Kind = Single);
1772
1773             if Lib_Version.Value = Empty_String then
1774                if Current_Verbosity = High then
1775                   Write_Line ("No library version specified");
1776                end if;
1777
1778             else
1779                Data.Lib_Internal_Name := Lib_Version.Value;
1780             end if;
1781
1782             pragma Assert (The_Lib_Kind.Kind = Single);
1783
1784             if The_Lib_Kind.Value = Empty_String then
1785                if Current_Verbosity = High then
1786                   Write_Line ("No library kind specified");
1787                end if;
1788
1789             else
1790                Get_Name_String (The_Lib_Kind.Value);
1791
1792                declare
1793                   Kind_Name : constant String :=
1794                                 To_Lower (Name_Buffer (1 .. Name_Len));
1795
1796                   OK : Boolean := True;
1797
1798                begin
1799                   if Kind_Name = "static" then
1800                      Data.Library_Kind := Static;
1801
1802                   elsif Kind_Name = "dynamic" then
1803                      Data.Library_Kind := Dynamic;
1804
1805                   elsif Kind_Name = "relocatable" then
1806                      Data.Library_Kind := Relocatable;
1807
1808                   else
1809                      Error_Msg
1810                        (Project, In_Tree,
1811                         "illegal value for Library_Kind",
1812                         The_Lib_Kind.Location);
1813                      OK := False;
1814                   end if;
1815
1816                   if Current_Verbosity = High and then OK then
1817                      Write_Str ("Library kind = ");
1818                      Write_Line (Kind_Name);
1819                   end if;
1820
1821                   if Data.Library_Kind /= Static and then
1822                     MLib.Tgt.Support_For_Libraries = MLib.Tgt.Static_Only
1823                   then
1824                      Error_Msg
1825                        (Project, In_Tree,
1826                         "only static libraries are supported " &
1827                         "on this platform",
1828                         The_Lib_Kind.Location);
1829                      Data.Library := False;
1830                   end if;
1831                end;
1832             end if;
1833
1834             if Data.Library and then Current_Verbosity = High then
1835                Write_Line ("This is a library project file");
1836             end if;
1837
1838          end if;
1839       end if;
1840    end Check_Library_Attributes;
1841
1842    --------------------------
1843    -- Check_Package_Naming --
1844    --------------------------
1845
1846    procedure Check_Package_Naming
1847      (Project : Project_Id;
1848       In_Tree : Project_Tree_Ref;
1849       Data    : in out Project_Data)
1850    is
1851       Naming_Id : constant Package_Id :=
1852                     Util.Value_Of (Name_Naming, Data.Decl.Packages, In_Tree);
1853
1854       Naming : Package_Element;
1855
1856    begin
1857       --  If there is a package Naming, we will put in Data.Naming
1858       --  what is in this package Naming.
1859
1860       if Naming_Id /= No_Package then
1861          Naming := In_Tree.Packages.Table (Naming_Id);
1862
1863          if Current_Verbosity = High then
1864             Write_Line ("Checking ""Naming"".");
1865          end if;
1866
1867          --  Check Spec_Suffix
1868
1869          declare
1870             Spec_Suffixs : Array_Element_Id :=
1871                              Util.Value_Of
1872                                (Name_Spec_Suffix,
1873                                 Naming.Decl.Arrays,
1874                                 In_Tree);
1875
1876             Suffix  : Array_Element_Id;
1877             Element : Array_Element;
1878             Suffix2 : Array_Element_Id;
1879
1880          begin
1881             --  If some suffixs have been specified, we make sure that
1882             --  for each language for which a default suffix has been
1883             --  specified, there is a suffix specified, either the one
1884             --  in the project file or if there were none, the default.
1885
1886             if Spec_Suffixs /= No_Array_Element then
1887                Suffix := Data.Naming.Spec_Suffix;
1888
1889                while Suffix /= No_Array_Element loop
1890                   Element :=
1891                     In_Tree.Array_Elements.Table (Suffix);
1892                   Suffix2 := Spec_Suffixs;
1893
1894                   while Suffix2 /= No_Array_Element loop
1895                      exit when In_Tree.Array_Elements.Table
1896                                 (Suffix2).Index = Element.Index;
1897                      Suffix2 := In_Tree.Array_Elements.Table
1898                                  (Suffix2).Next;
1899                   end loop;
1900
1901                   --  There is a registered default suffix, but no
1902                   --  suffix specified in the project file.
1903                   --  Add the default to the array.
1904
1905                   if Suffix2 = No_Array_Element then
1906                      Array_Element_Table.Increment_Last
1907                        (In_Tree.Array_Elements);
1908                      In_Tree.Array_Elements.Table
1909                        (Array_Element_Table.Last
1910                           (In_Tree.Array_Elements)) :=
1911                        (Index                => Element.Index,
1912                         Src_Index            => Element.Src_Index,
1913                         Index_Case_Sensitive => False,
1914                         Value                => Element.Value,
1915                         Next                 => Spec_Suffixs);
1916                      Spec_Suffixs := Array_Element_Table.Last
1917                                        (In_Tree.Array_Elements);
1918                   end if;
1919
1920                   Suffix := Element.Next;
1921                end loop;
1922
1923                --  Put the resulting array as the specification suffixs
1924
1925                Data.Naming.Spec_Suffix := Spec_Suffixs;
1926             end if;
1927          end;
1928
1929          declare
1930             Current : Array_Element_Id := Data.Naming.Spec_Suffix;
1931             Element : Array_Element;
1932
1933          begin
1934             while Current /= No_Array_Element loop
1935                Element := In_Tree.Array_Elements.Table (Current);
1936                Get_Name_String (Element.Value.Value);
1937
1938                if Name_Len = 0 then
1939                   Error_Msg
1940                     (Project, In_Tree,
1941                      "Spec_Suffix cannot be empty",
1942                      Element.Value.Location);
1943                end if;
1944
1945                In_Tree.Array_Elements.Table (Current) := Element;
1946                Current := Element.Next;
1947             end loop;
1948          end;
1949
1950          --  Check Body_Suffix
1951
1952          declare
1953             Impl_Suffixs : Array_Element_Id :=
1954               Util.Value_Of
1955                 (Name_Body_Suffix,
1956                  Naming.Decl.Arrays,
1957                  In_Tree);
1958
1959             Suffix       : Array_Element_Id;
1960             Element      : Array_Element;
1961             Suffix2      : Array_Element_Id;
1962
1963          begin
1964             --  If some suffixes have been specified, we make sure that
1965             --  for each language for which a default suffix has been
1966             --  specified, there is a suffix specified, either the one
1967             --  in the project file or if there were noe, the default.
1968
1969             if Impl_Suffixs /= No_Array_Element then
1970                Suffix := Data.Naming.Body_Suffix;
1971
1972                while Suffix /= No_Array_Element loop
1973                   Element :=
1974                     In_Tree.Array_Elements.Table (Suffix);
1975                   Suffix2 := Impl_Suffixs;
1976
1977                   while Suffix2 /= No_Array_Element loop
1978                      exit when In_Tree.Array_Elements.Table
1979                                 (Suffix2).Index = Element.Index;
1980                      Suffix2 := In_Tree.Array_Elements.Table
1981                                   (Suffix2).Next;
1982                   end loop;
1983
1984                   --  There is a registered default suffix, but no suffix was
1985                   --  specified in the project file. Add the default to the
1986                   --  array.
1987
1988                   if Suffix2 = No_Array_Element then
1989                      Array_Element_Table.Increment_Last
1990                        (In_Tree.Array_Elements);
1991                      In_Tree.Array_Elements.Table
1992                        (Array_Element_Table.Last
1993                           (In_Tree.Array_Elements)) :=
1994                        (Index                => Element.Index,
1995                         Src_Index            => Element.Src_Index,
1996                         Index_Case_Sensitive => False,
1997                         Value                => Element.Value,
1998                         Next                 => Impl_Suffixs);
1999                      Impl_Suffixs := Array_Element_Table.Last
2000                                        (In_Tree.Array_Elements);
2001                   end if;
2002
2003                   Suffix := Element.Next;
2004                end loop;
2005
2006                --  Put the resulting array as the implementation suffixs
2007
2008                Data.Naming.Body_Suffix := Impl_Suffixs;
2009             end if;
2010          end;
2011
2012          declare
2013             Current : Array_Element_Id := Data.Naming.Body_Suffix;
2014             Element : Array_Element;
2015
2016          begin
2017             while Current /= No_Array_Element loop
2018                Element := In_Tree.Array_Elements.Table (Current);
2019                Get_Name_String (Element.Value.Value);
2020
2021                if Name_Len = 0 then
2022                   Error_Msg
2023                     (Project, In_Tree,
2024                      "Body_Suffix cannot be empty",
2025                      Element.Value.Location);
2026                end if;
2027
2028                In_Tree.Array_Elements.Table (Current) := Element;
2029                Current := Element.Next;
2030             end loop;
2031          end;
2032
2033          --  Get the exceptions, if any
2034
2035          Data.Naming.Specification_Exceptions :=
2036            Util.Value_Of
2037              (Name_Specification_Exceptions,
2038               In_Arrays => Naming.Decl.Arrays,
2039               In_Tree   => In_Tree);
2040
2041          Data.Naming.Implementation_Exceptions :=
2042            Util.Value_Of
2043              (Name_Implementation_Exceptions,
2044               In_Arrays => Naming.Decl.Arrays,
2045               In_Tree   => In_Tree);
2046       end if;
2047    end Check_Package_Naming;
2048
2049    ---------------------------------
2050    -- Check_Programming_Languages --
2051    ---------------------------------
2052
2053    procedure Check_Programming_Languages
2054      (In_Tree : Project_Tree_Ref;
2055       Data    : in out Project_Data)
2056    is
2057       Languages : Variable_Value := Nil_Variable_Value;
2058
2059    begin
2060       Languages :=
2061         Prj.Util.Value_Of (Name_Languages, Data.Decl.Attributes, In_Tree);
2062       Data.Ada_Sources_Present   := Data.Source_Dirs /= Nil_String;
2063       Data.Other_Sources_Present := Data.Source_Dirs /= Nil_String;
2064
2065       if Data.Source_Dirs /= Nil_String then
2066
2067          --  Check if languages are specified in this project
2068
2069          if Languages.Default then
2070
2071             --  Attribute Languages is not specified. So, it defaults to
2072             --  a project of language Ada only.
2073
2074             Data.Languages (Ada_Language_Index) := True;
2075
2076             --  No sources of languages other than Ada
2077
2078             Data.Other_Sources_Present := False;
2079
2080          else
2081             declare
2082                Current   : String_List_Id := Languages.Values;
2083                Element   : String_Element;
2084                Lang_Name : Name_Id;
2085                Index     : Language_Index;
2086
2087             begin
2088                --  Assume that there is no language specified yet
2089
2090                Data.Other_Sources_Present := False;
2091                Data.Ada_Sources_Present   := False;
2092
2093                --  Look through all the languages specified in attribute
2094                --  Languages, if any
2095
2096                while Current /= Nil_String loop
2097                   Element :=
2098                     In_Tree.String_Elements.Table (Current);
2099                   Get_Name_String (Element.Value);
2100                   To_Lower (Name_Buffer (1 .. Name_Len));
2101                   Lang_Name := Name_Find;
2102                   Index := Language_Indexes.Get (Lang_Name);
2103
2104                   if Index = No_Language_Index then
2105                      Add_Language_Name (Lang_Name);
2106                      Index := Last_Language_Index;
2107                   end if;
2108
2109                   Set (Index, True, Data, In_Tree);
2110                   Set (Language_Processing => Default_Language_Processing_Data,
2111                        For_Language        => Index,
2112                        In_Project          => Data,
2113                        In_Tree             => In_Tree);
2114
2115                   if Index = Ada_Language_Index then
2116                      Data.Ada_Sources_Present := True;
2117
2118                   else
2119                      Data.Other_Sources_Present := True;
2120                   end if;
2121
2122                   Current := Element.Next;
2123                end loop;
2124             end;
2125          end if;
2126       end if;
2127    end Check_Programming_Languages;
2128
2129    -------------------
2130    -- Check_Project --
2131    -------------------
2132
2133    function Check_Project
2134      (P            : Project_Id;
2135       Root_Project : Project_Id;
2136       In_Tree      : Project_Tree_Ref;
2137       Extending    : Boolean) return Boolean
2138    is
2139    begin
2140       if P = Root_Project then
2141          return True;
2142
2143       elsif Extending then
2144          declare
2145             Data : Project_Data := In_Tree.Projects.Table (Root_Project);
2146
2147          begin
2148             while Data.Extends /= No_Project loop
2149                if P = Data.Extends then
2150                   return True;
2151                end if;
2152
2153                Data := In_Tree.Projects.Table (Data.Extends);
2154             end loop;
2155          end;
2156       end if;
2157
2158       return False;
2159    end Check_Project;
2160
2161    -------------------------------
2162    -- Check_Stand_Alone_Library --
2163    -------------------------------
2164
2165    procedure Check_Stand_Alone_Library
2166      (Project   : Project_Id;
2167       In_Tree   : Project_Tree_Ref;
2168       Data      : in out Project_Data;
2169       Extending : Boolean)
2170    is
2171       Lib_Interfaces      : constant Prj.Variable_Value :=
2172                               Prj.Util.Value_Of
2173                                 (Snames.Name_Library_Interface,
2174                                  Data.Decl.Attributes,
2175                                  In_Tree);
2176
2177       Lib_Auto_Init       : constant Prj.Variable_Value :=
2178                               Prj.Util.Value_Of
2179                                 (Snames.Name_Library_Auto_Init,
2180                                  Data.Decl.Attributes,
2181                                  In_Tree);
2182
2183       Lib_Src_Dir         : constant Prj.Variable_Value :=
2184                               Prj.Util.Value_Of
2185                                 (Snames.Name_Library_Src_Dir,
2186                                  Data.Decl.Attributes,
2187                                  In_Tree);
2188
2189       Lib_Symbol_File     : constant Prj.Variable_Value :=
2190                               Prj.Util.Value_Of
2191                                 (Snames.Name_Library_Symbol_File,
2192                                  Data.Decl.Attributes,
2193                                  In_Tree);
2194
2195       Lib_Symbol_Policy   : constant Prj.Variable_Value :=
2196                               Prj.Util.Value_Of
2197                                 (Snames.Name_Library_Symbol_Policy,
2198                                  Data.Decl.Attributes,
2199                                  In_Tree);
2200
2201       Lib_Ref_Symbol_File : constant Prj.Variable_Value :=
2202                               Prj.Util.Value_Of
2203                                 (Snames.Name_Library_Reference_Symbol_File,
2204                                  Data.Decl.Attributes,
2205                                  In_Tree);
2206
2207       Auto_Init_Supported : constant Boolean :=
2208                               MLib.Tgt.
2209                                 Standalone_Library_Auto_Init_Is_Supported;
2210
2211       OK : Boolean := True;
2212
2213    begin
2214       pragma Assert (Lib_Interfaces.Kind = List);
2215
2216       --  It is a stand-alone library project file if attribute
2217       --  Library_Interface is defined.
2218
2219       if not Lib_Interfaces.Default then
2220          SAL_Library : declare
2221             Interfaces     : String_List_Id := Lib_Interfaces.Values;
2222             Interface_ALIs : String_List_Id := Nil_String;
2223             Unit           : Name_Id;
2224             The_Unit_Id    : Unit_Id;
2225             The_Unit_Data  : Unit_Data;
2226
2227             procedure Add_ALI_For (Source : Name_Id);
2228             --  Add an ALI file name to the list of Interface ALIs
2229
2230             -----------------
2231             -- Add_ALI_For --
2232             -----------------
2233
2234             procedure Add_ALI_For (Source : Name_Id) is
2235             begin
2236                Get_Name_String (Source);
2237
2238                declare
2239                   ALI         : constant String :=
2240                     ALI_File_Name (Name_Buffer (1 .. Name_Len));
2241                   ALI_Name_Id : Name_Id;
2242                begin
2243                   Name_Len := ALI'Length;
2244                   Name_Buffer (1 .. Name_Len) := ALI;
2245                   ALI_Name_Id := Name_Find;
2246
2247                   String_Element_Table.Increment_Last
2248                     (In_Tree.String_Elements);
2249                   In_Tree.String_Elements.Table
2250                     (String_Element_Table.Last
2251                       (In_Tree.String_Elements)) :=
2252                     (Value         => ALI_Name_Id,
2253                      Index         => 0,
2254                      Display_Value => ALI_Name_Id,
2255                      Location      =>
2256                        In_Tree.String_Elements.Table
2257                          (Interfaces).Location,
2258                      Flag          => False,
2259                      Next          => Interface_ALIs);
2260                   Interface_ALIs := String_Element_Table.Last
2261                                       (In_Tree.String_Elements);
2262                end;
2263             end Add_ALI_For;
2264
2265          --  Start of processing for SAL_Library
2266
2267          begin
2268             Data.Standalone_Library := True;
2269
2270             --  Library_Interface cannot be an empty list
2271
2272             if Interfaces = Nil_String then
2273                Error_Msg
2274                  (Project, In_Tree,
2275                   "Library_Interface cannot be an empty list",
2276                   Lib_Interfaces.Location);
2277             end if;
2278
2279             --  Process each unit name specified in the attribute
2280             --  Library_Interface.
2281
2282             while Interfaces /= Nil_String loop
2283                Get_Name_String
2284                  (In_Tree.String_Elements.Table
2285                                                      (Interfaces).Value);
2286                To_Lower (Name_Buffer (1 .. Name_Len));
2287
2288                if Name_Len = 0 then
2289                   Error_Msg
2290                     (Project, In_Tree,
2291                      "an interface cannot be an empty string",
2292                      In_Tree.String_Elements.Table
2293                                                    (Interfaces).Location);
2294
2295                else
2296                   Unit := Name_Find;
2297                   Error_Msg_Name_1 := Unit;
2298                   The_Unit_Id :=
2299                     Units_Htable.Get (In_Tree.Units_HT, Unit);
2300
2301                   if The_Unit_Id = No_Unit then
2302                      Error_Msg
2303                        (Project, In_Tree,
2304                         "unknown unit {",
2305                         In_Tree.String_Elements.Table
2306                           (Interfaces).Location);
2307
2308                   else
2309                      --  Check that the unit is part of the project
2310
2311                      The_Unit_Data :=
2312                        In_Tree.Units.Table (The_Unit_Id);
2313
2314                      if The_Unit_Data.File_Names (Body_Part).Name /= No_Name
2315                        and then The_Unit_Data.File_Names (Body_Part).Path /=
2316                                                                         Slash
2317                      then
2318                         if Check_Project
2319                           (The_Unit_Data.File_Names (Body_Part).Project,
2320                            Project, In_Tree, Extending)
2321                         then
2322                            --  There is a body for this unit.
2323                            --  If there is no spec, we need to check
2324                            --  that it is not a subunit.
2325
2326                            if The_Unit_Data.File_Names
2327                              (Specification).Name = No_Name
2328                            then
2329                               declare
2330                                  Src_Ind : Source_File_Index;
2331
2332                               begin
2333                                  Src_Ind := Sinput.P.Load_Project_File
2334                                    (Get_Name_String
2335                                       (The_Unit_Data.File_Names
2336                                          (Body_Part).Path));
2337
2338                                  if Sinput.P.Source_File_Is_Subunit
2339                                    (Src_Ind)
2340                                  then
2341                                     Error_Msg
2342                                       (Project, In_Tree,
2343                                        "{ is a subunit; " &
2344                                        "it cannot be an interface",
2345                                        In_Tree.
2346                                          String_Elements.Table
2347                                            (Interfaces).Location);
2348                                  end if;
2349                               end;
2350                            end if;
2351
2352                            --  The unit is not a subunit, so we add
2353                            --  to the Interface ALIs the ALI file
2354                            --  corresponding to the body.
2355
2356                            Add_ALI_For
2357                              (The_Unit_Data.File_Names (Body_Part).Name);
2358
2359                         else
2360                            Error_Msg
2361                              (Project, In_Tree,
2362                               "{ is not an unit of this project",
2363                               In_Tree.String_Elements.Table
2364                                 (Interfaces).Location);
2365                         end if;
2366
2367                      elsif The_Unit_Data.File_Names
2368                        (Specification).Name /= No_Name
2369                        and then The_Unit_Data.File_Names
2370                          (Specification).Path /= Slash
2371                        and then Check_Project
2372                          (The_Unit_Data.File_Names
2373                               (Specification).Project,
2374                           Project, In_Tree, Extending)
2375
2376                      then
2377                         --  The unit is part of the project, it has
2378                         --  a spec, but no body. We add to the Interface
2379                         --  ALIs the ALI file corresponding to the spec.
2380
2381                         Add_ALI_For
2382                           (The_Unit_Data.File_Names (Specification).Name);
2383
2384                      else
2385                         Error_Msg
2386                           (Project, In_Tree,
2387                            "{ is not an unit of this project",
2388                            In_Tree.String_Elements.Table
2389                                                     (Interfaces).Location);
2390                      end if;
2391                   end if;
2392
2393                end if;
2394
2395                Interfaces :=
2396                  In_Tree.String_Elements.Table (Interfaces).Next;
2397             end loop;
2398
2399             --  Put the list of Interface ALIs in the project data
2400
2401             Data.Lib_Interface_ALIs := Interface_ALIs;
2402
2403             --  Check value of attribute Library_Auto_Init and set
2404             --  Lib_Auto_Init accordingly.
2405
2406             if Lib_Auto_Init.Default then
2407
2408                --  If no attribute Library_Auto_Init is declared, then
2409                --  set auto init only if it is supported.
2410
2411                Data.Lib_Auto_Init := Auto_Init_Supported;
2412
2413             else
2414                Get_Name_String (Lib_Auto_Init.Value);
2415                To_Lower (Name_Buffer (1 .. Name_Len));
2416
2417                if Name_Buffer (1 .. Name_Len) = "false" then
2418                   Data.Lib_Auto_Init := False;
2419
2420                elsif Name_Buffer (1 .. Name_Len) = "true" then
2421                   if Auto_Init_Supported then
2422                      Data.Lib_Auto_Init := True;
2423
2424                   else
2425                      --  Library_Auto_Init cannot be "true" if auto init
2426                      --  is not supported
2427
2428                      Error_Msg
2429                        (Project, In_Tree,
2430                         "library auto init not supported " &
2431                         "on this platform",
2432                         Lib_Auto_Init.Location);
2433                   end if;
2434
2435                else
2436                   Error_Msg
2437                     (Project, In_Tree,
2438                      "invalid value for attribute Library_Auto_Init",
2439                      Lib_Auto_Init.Location);
2440                end if;
2441             end if;
2442          end SAL_Library;
2443
2444          --  If attribute Library_Src_Dir is defined and not the
2445          --  empty string, check if the directory exist and is not
2446          --  the object directory or one of the source directories.
2447          --  This is the directory where copies of the interface
2448          --  sources will be copied. Note that this directory may be
2449          --  the library directory.
2450
2451          if Lib_Src_Dir.Value /= Empty_String then
2452             declare
2453                Dir_Id : constant Name_Id := Lib_Src_Dir.Value;
2454
2455             begin
2456                Locate_Directory
2457                  (Dir_Id, Data.Display_Directory,
2458                   Data.Library_Src_Dir,
2459                   Data.Display_Library_Src_Dir);
2460
2461                --  If directory does not exist, report an error
2462
2463                if Data.Library_Src_Dir = No_Name then
2464
2465                   --  Get the absolute name of the library directory
2466                   --  that does not exist, to report an error.
2467
2468                   declare
2469                      Dir_Name : constant String :=
2470                        Get_Name_String (Dir_Id);
2471
2472                   begin
2473                      if Is_Absolute_Path (Dir_Name) then
2474                         Err_Vars.Error_Msg_Name_1 := Dir_Id;
2475
2476                      else
2477                         Get_Name_String (Data.Directory);
2478
2479                         if Name_Buffer (Name_Len) /=
2480                           Directory_Separator
2481                         then
2482                            Name_Len := Name_Len + 1;
2483                            Name_Buffer (Name_Len) :=
2484                              Directory_Separator;
2485                         end if;
2486
2487                         Name_Buffer
2488                           (Name_Len + 1 ..
2489                              Name_Len + Dir_Name'Length) :=
2490                             Dir_Name;
2491                         Name_Len := Name_Len + Dir_Name'Length;
2492                         Err_Vars.Error_Msg_Name_1 := Name_Find;
2493                      end if;
2494
2495                      --  Report the error
2496
2497                      Error_Msg
2498                        (Project, In_Tree,
2499                         "Directory { does not exist",
2500                         Lib_Src_Dir.Location);
2501                   end;
2502
2503                   --  Report an error if it is the same as the object
2504                   --  directory.
2505
2506                elsif Data.Library_Src_Dir = Data.Object_Directory then
2507                   Error_Msg
2508                     (Project, In_Tree,
2509                      "directory to copy interfaces cannot be " &
2510                      "the object directory",
2511                      Lib_Src_Dir.Location);
2512                   Data.Library_Src_Dir := No_Name;
2513
2514                else
2515                   declare
2516                      Src_Dirs : String_List_Id;
2517                      Src_Dir  : String_Element;
2518
2519                   begin
2520                      --  Interface copy directory cannot be one of the source
2521                      --  directory of the current project.
2522
2523                      Src_Dirs := Data.Source_Dirs;
2524                      while Src_Dirs /= Nil_String loop
2525                         Src_Dir := In_Tree.String_Elements.Table
2526                                                           (Src_Dirs);
2527
2528                         --  Report error if it is one of the source directories
2529
2530                         if Data.Library_Src_Dir = Src_Dir.Value then
2531                            Error_Msg
2532                              (Project, In_Tree,
2533                               "directory to copy interfaces cannot " &
2534                               "be one of the source directories",
2535                               Lib_Src_Dir.Location);
2536                            Data.Library_Src_Dir := No_Name;
2537                            exit;
2538                         end if;
2539
2540                         Src_Dirs := Src_Dir.Next;
2541                      end loop;
2542
2543                      if Data.Library_Src_Dir /= No_Name then
2544
2545                         --  It cannot be a source directory of any other
2546                         --  project either.
2547
2548                         Project_Loop : for Pid in 1 ..
2549                           Project_Table.Last (In_Tree.Projects)
2550                         loop
2551                            Src_Dirs :=
2552                              In_Tree.Projects.Table (Pid).Source_Dirs;
2553                            Dir_Loop : while Src_Dirs /= Nil_String loop
2554                               Src_Dir :=
2555                                 In_Tree.String_Elements.Table (Src_Dirs);
2556
2557                               --  Report error if it is one of the source
2558                               --  directories
2559
2560                               if Data.Library_Src_Dir = Src_Dir.Value then
2561                                  Error_Msg_Name_1 := Src_Dir.Value;
2562                                  Error_Msg_Name_2 :=
2563                                    In_Tree.Projects.Table (Pid).Name;
2564                                  Error_Msg
2565                                    (Project, In_Tree,
2566                                     "directory to copy interfaces cannot " &
2567                                     "be the same as source directory { of " &
2568                                     "project {",
2569                                     Lib_Src_Dir.Location);
2570                                  Data.Library_Src_Dir := No_Name;
2571                                  exit Project_Loop;
2572                               end if;
2573
2574                               Src_Dirs := Src_Dir.Next;
2575                            end loop Dir_Loop;
2576                         end loop Project_Loop;
2577                      end if;
2578                   end;
2579
2580                   --  In high verbosity, if there is a valid Library_Src_Dir,
2581                   --  display its path name.
2582
2583                   if Data.Library_Src_Dir /= No_Name
2584                     and then Current_Verbosity = High
2585                   then
2586                      Write_Str ("Directory to copy interfaces =""");
2587                      Write_Str (Get_Name_String (Data.Library_Src_Dir));
2588                      Write_Line ("""");
2589                   end if;
2590                end if;
2591             end;
2592          end if;
2593
2594          --  Check the symbol related attributes
2595
2596          --  First, the symbol policy
2597
2598          if not Lib_Symbol_Policy.Default then
2599             declare
2600                Value : constant String :=
2601                  To_Lower
2602                    (Get_Name_String (Lib_Symbol_Policy.Value));
2603
2604             begin
2605                --  Symbol policy must hove one of a limited number of values
2606
2607                if Value = "autonomous" or else Value = "default" then
2608                   Data.Symbol_Data.Symbol_Policy := Autonomous;
2609
2610                elsif Value = "compliant" then
2611                   Data.Symbol_Data.Symbol_Policy := Compliant;
2612
2613                elsif Value = "controlled" then
2614                   Data.Symbol_Data.Symbol_Policy := Controlled;
2615
2616                elsif Value = "restricted" then
2617                   Data.Symbol_Data.Symbol_Policy := Restricted;
2618
2619                else
2620                   Error_Msg
2621                     (Project, In_Tree,
2622                      "illegal value for Library_Symbol_Policy",
2623                      Lib_Symbol_Policy.Location);
2624                end if;
2625             end;
2626          end if;
2627
2628          --  If attribute Library_Symbol_File is not specified, symbol policy
2629          --  cannot be Restricted.
2630
2631          if Lib_Symbol_File.Default then
2632             if Data.Symbol_Data.Symbol_Policy = Restricted then
2633                Error_Msg
2634                  (Project, In_Tree,
2635                   "Library_Symbol_File needs to be defined when " &
2636                   "symbol policy is Restricted",
2637                   Lib_Symbol_Policy.Location);
2638             end if;
2639
2640          else
2641             --  Library_Symbol_File is defined. Check that the file exists
2642
2643             Data.Symbol_Data.Symbol_File := Lib_Symbol_File.Value;
2644
2645             Get_Name_String (Lib_Symbol_File.Value);
2646
2647             if Name_Len = 0 then
2648                Error_Msg
2649                  (Project, In_Tree,
2650                   "symbol file name cannot be an empty string",
2651                   Lib_Symbol_File.Location);
2652
2653             else
2654                OK := not Is_Absolute_Path (Name_Buffer (1 .. Name_Len));
2655
2656                if OK then
2657                   for J in 1 .. Name_Len loop
2658                      if Name_Buffer (J) = '/'
2659                        or else Name_Buffer (J) = Directory_Separator
2660                      then
2661                         OK := False;
2662                         exit;
2663                      end if;
2664                   end loop;
2665                end if;
2666
2667                if not OK then
2668                   Error_Msg_Name_1 := Lib_Symbol_File.Value;
2669                   Error_Msg
2670                     (Project, In_Tree,
2671                      "symbol file name { is illegal. " &
2672                      "Name canot include directory info.",
2673                      Lib_Symbol_File.Location);
2674                end if;
2675             end if;
2676          end if;
2677
2678          --  If attribute Library_Reference_Symbol_File is not defined,
2679          --  symbol policy cannot be Compilant or Controlled.
2680
2681          if Lib_Ref_Symbol_File.Default then
2682             if Data.Symbol_Data.Symbol_Policy = Compliant
2683               or else Data.Symbol_Data.Symbol_Policy = Controlled
2684             then
2685                Error_Msg
2686                  (Project, In_Tree,
2687                   "a reference symbol file need to be defined",
2688                   Lib_Symbol_Policy.Location);
2689             end if;
2690
2691          else
2692             --  Library_Reference_Symbol_File is defined, check file exists
2693
2694             Data.Symbol_Data.Reference := Lib_Ref_Symbol_File.Value;
2695
2696             Get_Name_String (Lib_Ref_Symbol_File.Value);
2697
2698             if Name_Len = 0 then
2699                Error_Msg
2700                  (Project, In_Tree,
2701                   "reference symbol file name cannot be an empty string",
2702                   Lib_Symbol_File.Location);
2703
2704             else
2705                OK := not Is_Absolute_Path (Name_Buffer (1 .. Name_Len));
2706
2707                if OK then
2708                   for J in 1 .. Name_Len loop
2709                      if Name_Buffer (J) = '/'
2710                        or else Name_Buffer (J) = Directory_Separator
2711                      then
2712                         OK := False;
2713                         exit;
2714                      end if;
2715                   end loop;
2716                end if;
2717
2718                if not OK then
2719                   Error_Msg_Name_1 := Lib_Ref_Symbol_File.Value;
2720                   Error_Msg
2721                     (Project, In_Tree,
2722                      "reference symbol file { name is illegal. " &
2723                      "Name canot include directory info.",
2724                      Lib_Ref_Symbol_File.Location);
2725                end if;
2726
2727                if not Is_Regular_File
2728                  (Get_Name_String (Data.Object_Directory) &
2729                   Directory_Separator &
2730                   Get_Name_String (Lib_Ref_Symbol_File.Value))
2731                then
2732                   Error_Msg_Name_1 := Lib_Ref_Symbol_File.Value;
2733
2734                   --  For controlled symbol policy, it is an error if the
2735                   --  reference symbol file does not exist. For other symbol
2736                   --  policies, this is just a warning
2737
2738                   Error_Msg_Warn :=
2739                     Data.Symbol_Data.Symbol_Policy /= Controlled;
2740
2741                   Error_Msg
2742                     (Project, In_Tree,
2743                      "<library reference symbol file { does not exist",
2744                      Lib_Ref_Symbol_File.Location);
2745
2746                   --  In addition in the non-controlled case, if symbol policy
2747                   --  is Compliant, it is changed to Autonomous, because there
2748                   --  is no reference to check against, and we don't want to
2749                   --  fail in this case.
2750
2751                   if Data.Symbol_Data.Symbol_Policy /= Controlled then
2752                      if Data.Symbol_Data.Symbol_Policy = Compliant then
2753                         Data.Symbol_Data.Symbol_Policy := Autonomous;
2754                      end if;
2755                   end if;
2756                end if;
2757             end if;
2758          end if;
2759       end if;
2760    end Check_Stand_Alone_Library;
2761
2762    ----------------------------
2763    -- Compute_Directory_Last --
2764    ----------------------------
2765
2766    function Compute_Directory_Last (Dir : String) return Natural is
2767    begin
2768       if Dir'Length > 1
2769         and then (Dir (Dir'Last - 1) = Directory_Separator
2770                   or else Dir (Dir'Last - 1) = '/')
2771       then
2772          return Dir'Last - 1;
2773       else
2774          return Dir'Last;
2775       end if;
2776    end Compute_Directory_Last;
2777
2778    --------------------
2779    -- Body_Suffix_Of --
2780    --------------------
2781
2782    function Body_Suffix_Of
2783      (Language   : Language_Index;
2784       In_Project : Project_Data;
2785       In_Tree    : Project_Tree_Ref) return String
2786    is
2787       Suffix_Id : constant Name_Id :=
2788                     Suffix_Of (Language, In_Project, In_Tree);
2789    begin
2790       if Suffix_Id /= No_Name then
2791          return Get_Name_String (Suffix_Id);
2792       else
2793          return "." & Get_Name_String (Language_Names.Table (Language));
2794       end if;
2795    end Body_Suffix_Of;
2796
2797    ---------------
2798    -- Error_Msg --
2799    ---------------
2800
2801    procedure Error_Msg
2802      (Project       : Project_Id;
2803       In_Tree       : Project_Tree_Ref;
2804       Msg           : String;
2805       Flag_Location : Source_Ptr)
2806    is
2807       Real_Location : Source_Ptr := Flag_Location;
2808       Error_Buffer : String (1 .. 5_000);
2809       Error_Last   : Natural := 0;
2810       Msg_Name     : Natural := 0;
2811       First        : Positive := Msg'First;
2812
2813       procedure Add (C : Character);
2814       --  Add a character to the buffer
2815
2816       procedure Add (S : String);
2817       --  Add a string to the buffer
2818
2819       procedure Add (Id : Name_Id);
2820       --  Add a name to the buffer
2821
2822       ---------
2823       -- Add --
2824       ---------
2825
2826       procedure Add (C : Character) is
2827       begin
2828          Error_Last := Error_Last + 1;
2829          Error_Buffer (Error_Last) := C;
2830       end Add;
2831
2832       procedure Add (S : String) is
2833       begin
2834          Error_Buffer (Error_Last + 1 .. Error_Last + S'Length) := S;
2835          Error_Last := Error_Last + S'Length;
2836       end Add;
2837
2838       procedure Add (Id : Name_Id) is
2839       begin
2840          Get_Name_String (Id);
2841          Add (Name_Buffer (1 .. Name_Len));
2842       end Add;
2843
2844    --  Start of processing for Error_Msg
2845
2846    begin
2847       --  If location of error is unknown, use the location of the project
2848
2849       if Real_Location = No_Location then
2850          Real_Location := In_Tree.Projects.Table (Project).Location;
2851       end if;
2852
2853       if Error_Report = null then
2854          Prj.Err.Error_Msg (Msg, Real_Location);
2855          return;
2856       end if;
2857
2858       --  Ignore continuation character
2859
2860       if Msg (First) = '\' then
2861          First := First + 1;
2862
2863          --  Warniung character is always the first one in this package
2864          --  this is an undoocumented kludge!!!
2865
2866       elsif Msg (First) = '?' then
2867          First := First + 1;
2868          Add ("Warning: ");
2869
2870       elsif Msg (First) = '<' then
2871          First := First + 1;
2872
2873          if Err_Vars.Error_Msg_Warn then
2874             Add ("Warning: ");
2875          end if;
2876       end if;
2877
2878       for Index in First .. Msg'Last loop
2879          if Msg (Index) = '{' or else Msg (Index) = '%' then
2880
2881             --  Include a name between double quotes
2882
2883             Msg_Name := Msg_Name + 1;
2884             Add ('"');
2885
2886             case Msg_Name is
2887                when 1 => Add (Err_Vars.Error_Msg_Name_1);
2888                when 2 => Add (Err_Vars.Error_Msg_Name_2);
2889                when 3 => Add (Err_Vars.Error_Msg_Name_3);
2890
2891                when others => null;
2892             end case;
2893
2894             Add ('"');
2895
2896          else
2897             Add (Msg (Index));
2898          end if;
2899
2900       end loop;
2901
2902       Error_Report (Error_Buffer (1 .. Error_Last), Project, In_Tree);
2903    end Error_Msg;
2904
2905    ------------------
2906    -- Find_Sources --
2907    ------------------
2908
2909    procedure Find_Sources
2910      (Project      : Project_Id;
2911       In_Tree      : Project_Tree_Ref;
2912       Data         : in out Project_Data;
2913       For_Language : Language_Index;
2914       Follow_Links : Boolean := False)
2915    is
2916       Source_Dir      : String_List_Id := Data.Source_Dirs;
2917       Element         : String_Element;
2918       Dir             : Dir_Type;
2919       Current_Source  : String_List_Id := Nil_String;
2920       Source_Recorded : Boolean := False;
2921
2922    begin
2923       if Current_Verbosity = High then
2924          Write_Line ("Looking for sources:");
2925       end if;
2926
2927       --  For each subdirectory
2928
2929       while Source_Dir /= Nil_String loop
2930          begin
2931             Source_Recorded := False;
2932             Element := In_Tree.String_Elements.Table (Source_Dir);
2933             if Element.Value /= No_Name then
2934                Get_Name_String (Element.Display_Value);
2935
2936                declare
2937                   Source_Directory : constant String :=
2938                     Name_Buffer (1 .. Name_Len) & Directory_Separator;
2939                   Dir_Last  : constant Natural :=
2940                      Compute_Directory_Last (Source_Directory);
2941
2942                begin
2943                   if Current_Verbosity = High then
2944                      Write_Str ("Source_Dir = ");
2945                      Write_Line (Source_Directory);
2946                   end if;
2947
2948                   --  We look to every entry in the source directory
2949
2950                   Open (Dir, Source_Directory
2951                                (Source_Directory'First .. Dir_Last));
2952
2953                   loop
2954                      Read (Dir, Name_Buffer, Name_Len);
2955
2956                      if Current_Verbosity = High then
2957                         Write_Str  ("   Checking ");
2958                         Write_Line (Name_Buffer (1 .. Name_Len));
2959                      end if;
2960
2961                      exit when Name_Len = 0;
2962
2963                      declare
2964                         File_Name : constant Name_Id := Name_Find;
2965                         Path      : constant String :=
2966                           Normalize_Pathname
2967                             (Name      => Name_Buffer (1 .. Name_Len),
2968                              Directory => Source_Directory
2969                                (Source_Directory'First .. Dir_Last),
2970                              Resolve_Links => Follow_Links,
2971                              Case_Sensitive => True);
2972                         Path_Name : Name_Id;
2973
2974                      begin
2975                         Name_Len := Path'Length;
2976                         Name_Buffer (1 .. Name_Len) := Path;
2977                         Path_Name := Name_Find;
2978
2979                         if For_Language = Ada_Language_Index then
2980
2981                            --  We attempt to register it as a source. However,
2982                            --  there is no error if the file does not contain
2983                            --  a valid source. But there is an error if we have
2984                            --  a duplicate unit name.
2985
2986                            Record_Ada_Source
2987                              (File_Name       => File_Name,
2988                               Path_Name       => Path_Name,
2989                               Project         => Project,
2990                               In_Tree         => In_Tree,
2991                               Data            => Data,
2992                               Location        => No_Location,
2993                               Current_Source  => Current_Source,
2994                               Source_Recorded => Source_Recorded,
2995                               Follow_Links    => Follow_Links);
2996
2997                         else
2998                            Check_For_Source
2999                              (File_Name        => File_Name,
3000                               Path_Name        => Path_Name,
3001                               Project          => Project,
3002                               In_Tree          => In_Tree,
3003                               Data             => Data,
3004                               Location         => No_Location,
3005                               Language         => For_Language,
3006                               Suffix           =>
3007                                 Body_Suffix_Of (For_Language, Data, In_Tree),
3008                               Naming_Exception => False);
3009                         end if;
3010                      end;
3011                   end loop;
3012
3013                   Close (Dir);
3014                end;
3015             end if;
3016
3017          exception
3018             when Directory_Error =>
3019                null;
3020          end;
3021
3022          if Source_Recorded then
3023             In_Tree.String_Elements.Table (Source_Dir).Flag :=
3024               True;
3025          end if;
3026
3027          Source_Dir := Element.Next;
3028       end loop;
3029
3030       if Current_Verbosity = High then
3031          Write_Line ("end Looking for sources.");
3032       end if;
3033
3034       if For_Language = Ada_Language_Index then
3035
3036          --  If we have looked for sources and found none, then
3037          --  it is an error, except if it is an extending project.
3038          --  If a non extending project is not supposed to contain
3039          --  any source, then we never call Find_Sources.
3040
3041          if Current_Source /= Nil_String then
3042             Data.Ada_Sources_Present := True;
3043
3044          elsif Data.Extends = No_Project then
3045             Report_No_Ada_Sources (Project, In_Tree, Data.Location);
3046          end if;
3047       end if;
3048    end Find_Sources;
3049
3050    --------------------------------
3051    -- Free_Ada_Naming_Exceptions --
3052    --------------------------------
3053
3054    procedure Free_Ada_Naming_Exceptions is
3055    begin
3056       Ada_Naming_Exception_Table.Set_Last (0);
3057       Ada_Naming_Exceptions.Reset;
3058       Reverse_Ada_Naming_Exceptions.Reset;
3059    end Free_Ada_Naming_Exceptions;
3060
3061    ---------------------
3062    -- Get_Directories --
3063    ---------------------
3064
3065    procedure Get_Directories
3066      (Project : Project_Id;
3067       In_Tree : Project_Tree_Ref;
3068       Data    : in out Project_Data)
3069    is
3070       Object_Dir : constant Variable_Value :=
3071                      Util.Value_Of
3072                        (Name_Object_Dir, Data.Decl.Attributes, In_Tree);
3073
3074       Exec_Dir   : constant Variable_Value :=
3075                      Util.Value_Of
3076                        (Name_Exec_Dir, Data.Decl.Attributes, In_Tree);
3077
3078       Source_Dirs : constant Variable_Value :=
3079                       Util.Value_Of
3080                         (Name_Source_Dirs, Data.Decl.Attributes, In_Tree);
3081
3082       Last_Source_Dir : String_List_Id  := Nil_String;
3083
3084       procedure Find_Source_Dirs (From : Name_Id; Location : Source_Ptr);
3085       --  Find one or several source directories, and add them
3086       --  to the list of source directories of the project.
3087
3088       ----------------------
3089       -- Find_Source_Dirs --
3090       ----------------------
3091
3092       procedure Find_Source_Dirs (From : Name_Id; Location : Source_Ptr) is
3093          Directory : constant String := Get_Name_String (From);
3094          Element   : String_Element;
3095
3096          procedure Recursive_Find_Dirs (Path : Name_Id);
3097          --  Find all the subdirectories (recursively) of Path and add them
3098          --  to the list of source directories of the project.
3099
3100          -------------------------
3101          -- Recursive_Find_Dirs --
3102          -------------------------
3103
3104          procedure Recursive_Find_Dirs (Path : Name_Id) is
3105             Dir      : Dir_Type;
3106             Name     : String (1 .. 250);
3107             Last     : Natural;
3108             List     : String_List_Id := Data.Source_Dirs;
3109             Element  : String_Element;
3110             Found    : Boolean := False;
3111
3112             Non_Canonical_Path : Name_Id := No_Name;
3113             Canonical_Path     : Name_Id := No_Name;
3114
3115             The_Path : constant String :=
3116                          Normalize_Pathname (Get_Name_String (Path)) &
3117                          Directory_Separator;
3118
3119             The_Path_Last : constant Natural :=
3120                               Compute_Directory_Last (The_Path);
3121
3122          begin
3123             Name_Len := The_Path_Last - The_Path'First + 1;
3124             Name_Buffer (1 .. Name_Len) :=
3125               The_Path (The_Path'First .. The_Path_Last);
3126             Non_Canonical_Path := Name_Find;
3127             Get_Name_String (Non_Canonical_Path);
3128             Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
3129             Canonical_Path := Name_Find;
3130
3131             --  To avoid processing the same directory several times, check
3132             --  if the directory is already in Recursive_Dirs. If it is,
3133             --  then there is nothing to do, just return. If it is not, put
3134             --  it there and continue recursive processing.
3135
3136             if Recursive_Dirs.Get (Canonical_Path) then
3137                return;
3138
3139             else
3140                Recursive_Dirs.Set (Canonical_Path, True);
3141             end if;
3142
3143             --  Check if directory is already in list
3144
3145             while List /= Nil_String loop
3146                Element := In_Tree.String_Elements.Table (List);
3147
3148                if Element.Value /= No_Name then
3149                   Found := Element.Value = Canonical_Path;
3150                   exit when Found;
3151                end if;
3152
3153                List := Element.Next;
3154             end loop;
3155
3156             --  If directory is not already in list, put it there
3157
3158             if not Found then
3159                if Current_Verbosity = High then
3160                   Write_Str  ("   ");
3161                   Write_Line (The_Path (The_Path'First .. The_Path_Last));
3162                end if;
3163
3164                String_Element_Table.Increment_Last
3165                  (In_Tree.String_Elements);
3166                Element :=
3167                  (Value    => Canonical_Path,
3168                   Display_Value => Non_Canonical_Path,
3169                   Location => No_Location,
3170                   Flag     => False,
3171                   Next     => Nil_String,
3172                   Index    => 0);
3173
3174                --  Case of first source directory
3175
3176                if Last_Source_Dir = Nil_String then
3177                   Data.Source_Dirs := String_Element_Table.Last
3178                                         (In_Tree.String_Elements);
3179
3180                   --  Here we already have source directories
3181
3182                else
3183                   --  Link the previous last to the new one
3184
3185                   In_Tree.String_Elements.Table
3186                     (Last_Source_Dir).Next :=
3187                       String_Element_Table.Last
3188                         (In_Tree.String_Elements);
3189                end if;
3190
3191                --  And register this source directory as the new last
3192
3193                Last_Source_Dir  := String_Element_Table.Last
3194                  (In_Tree.String_Elements);
3195                In_Tree.String_Elements.Table (Last_Source_Dir) :=
3196                  Element;
3197             end if;
3198
3199             --  Now look for subdirectories. We do that even when this
3200             --  directory is already in the list, because some of its
3201             --  subdirectories may not be in the list yet.
3202
3203             Open (Dir, The_Path (The_Path'First .. The_Path_Last));
3204
3205             loop
3206                Read (Dir, Name, Last);
3207                exit when Last = 0;
3208
3209                if Name (1 .. Last) /= "."
3210                  and then Name (1 .. Last) /= ".."
3211                then
3212                   --  Avoid . and .. directories
3213
3214                   if Current_Verbosity = High then
3215                      Write_Str  ("   Checking ");
3216                      Write_Line (Name (1 .. Last));
3217                   end if;
3218
3219                   declare
3220                      Path_Name : constant String :=
3221                                    Normalize_Pathname
3222                                      (Name      => Name (1 .. Last),
3223                                       Directory =>
3224                                         The_Path
3225                                           (The_Path'First .. The_Path_Last),
3226                                       Resolve_Links  => False,
3227                                       Case_Sensitive => True);
3228
3229                   begin
3230                      if Is_Directory (Path_Name) then
3231
3232                         --  We have found a new subdirectory, call self
3233
3234                         Name_Len := Path_Name'Length;
3235                         Name_Buffer (1 .. Name_Len) := Path_Name;
3236                         Recursive_Find_Dirs (Name_Find);
3237                      end if;
3238                   end;
3239                end if;
3240             end loop;
3241
3242             Close (Dir);
3243
3244          exception
3245             when Directory_Error =>
3246                null;
3247          end Recursive_Find_Dirs;
3248
3249       --  Start of processing for Find_Source_Dirs
3250
3251       begin
3252          if Current_Verbosity = High then
3253             Write_Str ("Find_Source_Dirs (""");
3254             Write_Str (Directory);
3255             Write_Line (""")");
3256          end if;
3257
3258          --  First, check if we are looking for a directory tree,
3259          --  indicated by "/**" at the end.
3260
3261          if Directory'Length >= 3
3262            and then Directory (Directory'Last - 1 .. Directory'Last) = "**"
3263            and then (Directory (Directory'Last - 2) = '/'
3264                        or else
3265                      Directory (Directory'Last - 2) = Directory_Separator)
3266          then
3267             Data.Known_Order_Of_Source_Dirs := False;
3268
3269             Name_Len := Directory'Length - 3;
3270
3271             if Name_Len = 0 then
3272
3273                --  This is the case of "/**": all directories
3274                --  in the file system.
3275
3276                Name_Len := 1;
3277                Name_Buffer (1) := Directory (Directory'First);
3278
3279             else
3280                Name_Buffer (1 .. Name_Len) :=
3281                  Directory (Directory'First .. Directory'Last - 3);
3282             end if;
3283
3284             if Current_Verbosity = High then
3285                Write_Str ("Looking for all subdirectories of """);
3286                Write_Str (Name_Buffer (1 .. Name_Len));
3287                Write_Line ("""");
3288             end if;
3289
3290             declare
3291                Base_Dir : constant Name_Id := Name_Find;
3292                Root_Dir : constant String :=
3293                             Normalize_Pathname
3294                               (Name      => Get_Name_String (Base_Dir),
3295                                Directory =>
3296                                  Get_Name_String (Data.Display_Directory),
3297                                Resolve_Links  => False,
3298                                Case_Sensitive => True);
3299
3300             begin
3301                if Root_Dir'Length = 0 then
3302                   Err_Vars.Error_Msg_Name_1 := Base_Dir;
3303
3304                   if Location = No_Location then
3305                      Error_Msg
3306                        (Project, In_Tree,
3307                         "{ is not a valid directory.",
3308                         Data.Location);
3309                   else
3310                      Error_Msg
3311                        (Project, In_Tree,
3312                         "{ is not a valid directory.",
3313                         Location);
3314                   end if;
3315
3316                else
3317                   --  We have an existing directory, we register it and all
3318                   --  of its subdirectories.
3319
3320                   if Current_Verbosity = High then
3321                      Write_Line ("Looking for source directories:");
3322                   end if;
3323
3324                   Name_Len := Root_Dir'Length;
3325                   Name_Buffer (1 .. Name_Len) := Root_Dir;
3326                   Recursive_Find_Dirs (Name_Find);
3327
3328                   if Current_Verbosity = High then
3329                      Write_Line ("End of looking for source directories.");
3330                   end if;
3331                end if;
3332             end;
3333
3334          --  We have a single directory
3335
3336          else
3337             declare
3338                Path_Name         : Name_Id;
3339                Display_Path_Name : Name_Id;
3340
3341             begin
3342                Locate_Directory
3343                  (From, Data.Display_Directory, Path_Name, Display_Path_Name);
3344
3345                if Path_Name = No_Name then
3346                   Err_Vars.Error_Msg_Name_1 := From;
3347
3348                   if Location = No_Location then
3349                      Error_Msg
3350                        (Project, In_Tree,
3351                         "{ is not a valid directory",
3352                         Data.Location);
3353                   else
3354                      Error_Msg
3355                        (Project, In_Tree,
3356                         "{ is not a valid directory",
3357                         Location);
3358                   end if;
3359
3360                else
3361                   --  As it is an existing directory, we add it to
3362                   --  the list of directories.
3363
3364                   String_Element_Table.Increment_Last
3365                     (In_Tree.String_Elements);
3366                   Element.Value := Path_Name;
3367                   Element.Display_Value := Display_Path_Name;
3368
3369                   if Last_Source_Dir = Nil_String then
3370
3371                      --  This is the first source directory
3372
3373                      Data.Source_Dirs := String_Element_Table.Last
3374                                         (In_Tree.String_Elements);
3375
3376                   else
3377                      --  We already have source directories,
3378                      --  link the previous last to the new one.
3379
3380                      In_Tree.String_Elements.Table
3381                        (Last_Source_Dir).Next :=
3382                          String_Element_Table.Last
3383                            (In_Tree.String_Elements);
3384                   end if;
3385
3386                   --  And register this source directory as the new last
3387
3388                   Last_Source_Dir := String_Element_Table.Last
3389                     (In_Tree.String_Elements);
3390                   In_Tree.String_Elements.Table
3391                     (Last_Source_Dir) := Element;
3392                end if;
3393             end;
3394          end if;
3395       end Find_Source_Dirs;
3396
3397    --  Start of processing for Get_Directories
3398
3399    begin
3400       if Current_Verbosity = High then
3401          Write_Line ("Starting to look for directories");
3402       end if;
3403
3404       --  Check the object directory
3405
3406       pragma Assert (Object_Dir.Kind = Single,
3407                      "Object_Dir is not a single string");
3408
3409       --  We set the object directory to its default
3410
3411       Data.Object_Directory   := Data.Directory;
3412       Data.Display_Object_Dir := Data.Display_Directory;
3413
3414       if Object_Dir.Value /= Empty_String then
3415          Get_Name_String (Object_Dir.Value);
3416
3417          if Name_Len = 0 then
3418             Error_Msg
3419               (Project, In_Tree,
3420                "Object_Dir cannot be empty",
3421                Object_Dir.Location);
3422
3423          else
3424             --  We check that the specified object directory does exist
3425
3426             Locate_Directory
3427               (Object_Dir.Value, Data.Display_Directory,
3428                Data.Object_Directory, Data.Display_Object_Dir);
3429
3430             if Data.Object_Directory = No_Name then
3431
3432                --  The object directory does not exist, report an error
3433
3434                Err_Vars.Error_Msg_Name_1 := Object_Dir.Value;
3435                Error_Msg
3436                  (Project, In_Tree,
3437                   "the object directory { cannot be found",
3438                   Data.Location);
3439
3440                --  Do not keep a nil Object_Directory. Set it to the specified
3441                --  (relative or absolute) path. This is for the benefit of
3442                --  tools that recover from errors; for example, these tools
3443                --  could create the non existent directory.
3444
3445                Data.Display_Object_Dir := Object_Dir.Value;
3446                Get_Name_String (Object_Dir.Value);
3447                Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
3448                Data.Object_Directory := Name_Find;
3449             end if;
3450          end if;
3451       end if;
3452
3453       if Current_Verbosity = High then
3454          if Data.Object_Directory = No_Name then
3455             Write_Line ("No object directory");
3456          else
3457             Write_Str ("Object directory: """);
3458             Write_Str (Get_Name_String (Data.Display_Object_Dir));
3459             Write_Line ("""");
3460          end if;
3461       end if;
3462
3463       --  Check the exec directory
3464
3465       pragma Assert (Exec_Dir.Kind = Single,
3466                      "Exec_Dir is not a single string");
3467
3468       --  We set the object directory to its default
3469
3470       Data.Exec_Directory   := Data.Object_Directory;
3471       Data.Display_Exec_Dir := Data.Display_Object_Dir;
3472
3473       if Exec_Dir.Value /= Empty_String then
3474          Get_Name_String (Exec_Dir.Value);
3475
3476          if Name_Len = 0 then
3477             Error_Msg
3478               (Project, In_Tree,
3479                "Exec_Dir cannot be empty",
3480                Exec_Dir.Location);
3481
3482          else
3483             --  We check that the specified object directory
3484             --  does exist.
3485
3486             Locate_Directory
3487               (Exec_Dir.Value, Data.Directory,
3488                Data.Exec_Directory, Data.Display_Exec_Dir);
3489
3490             if Data.Exec_Directory = No_Name then
3491                Err_Vars.Error_Msg_Name_1 := Exec_Dir.Value;
3492                Error_Msg
3493                  (Project, In_Tree,
3494                   "the exec directory { cannot be found",
3495                   Data.Location);
3496             end if;
3497          end if;
3498       end if;
3499
3500       if Current_Verbosity = High then
3501          if Data.Exec_Directory = No_Name then
3502             Write_Line ("No exec directory");
3503          else
3504             Write_Str ("Exec directory: """);
3505             Write_Str (Get_Name_String (Data.Display_Exec_Dir));
3506             Write_Line ("""");
3507          end if;
3508       end if;
3509
3510       --  Look for the source directories
3511
3512       if Current_Verbosity = High then
3513          Write_Line ("Starting to look for source directories");
3514       end if;
3515
3516       pragma Assert (Source_Dirs.Kind = List, "Source_Dirs is not a list");
3517
3518       if Source_Dirs.Default then
3519
3520          --  No Source_Dirs specified: the single source directory
3521          --  is the one containing the project file
3522
3523          String_Element_Table.Increment_Last
3524            (In_Tree.String_Elements);
3525          Data.Source_Dirs := String_Element_Table.Last
3526            (In_Tree.String_Elements);
3527          In_Tree.String_Elements.Table (Data.Source_Dirs) :=
3528            (Value         => Data.Directory,
3529             Display_Value => Data.Display_Directory,
3530             Location      => No_Location,
3531             Flag          => False,
3532             Next          => Nil_String,
3533             Index         => 0);
3534
3535          if Current_Verbosity = High then
3536             Write_Line ("Single source directory:");
3537             Write_Str ("    """);
3538             Write_Str (Get_Name_String (Data.Display_Directory));
3539             Write_Line ("""");
3540          end if;
3541
3542       elsif Source_Dirs.Values = Nil_String then
3543
3544          --  If Source_Dirs is an empty string list, this means
3545          --  that this project contains no source. For projects that
3546          --  don't extend other projects, this also means that there is no
3547          --  need for an object directory, if not specified.
3548
3549          if Data.Extends = No_Project
3550            and then  Data.Object_Directory = Data.Directory
3551          then
3552             Data.Object_Directory := No_Name;
3553          end if;
3554
3555          Data.Source_Dirs           := Nil_String;
3556          Data.Ada_Sources_Present   := False;
3557          Data.Other_Sources_Present := False;
3558
3559       else
3560          declare
3561             Source_Dir : String_List_Id := Source_Dirs.Values;
3562             Element    : String_Element;
3563
3564          begin
3565             --  We will find the source directories for each
3566             --  element of the list
3567
3568             while Source_Dir /= Nil_String loop
3569                Element :=
3570                  In_Tree.String_Elements.Table (Source_Dir);
3571                Find_Source_Dirs (Element.Value, Element.Location);
3572                Source_Dir := Element.Next;
3573             end loop;
3574          end;
3575       end if;
3576
3577       if Current_Verbosity = High then
3578          Write_Line ("Putting source directories in canonical cases");
3579       end if;
3580
3581       declare
3582          Current : String_List_Id := Data.Source_Dirs;
3583          Element : String_Element;
3584
3585       begin
3586          while Current /= Nil_String loop
3587             Element := In_Tree.String_Elements.Table (Current);
3588             if Element.Value /= No_Name then
3589                Get_Name_String (Element.Value);
3590                Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
3591                Element.Value := Name_Find;
3592                In_Tree.String_Elements.Table (Current) := Element;
3593             end if;
3594
3595             Current := Element.Next;
3596          end loop;
3597       end;
3598
3599    end Get_Directories;
3600
3601    ---------------
3602    -- Get_Mains --
3603    ---------------
3604
3605    procedure Get_Mains
3606      (Project : Project_Id;
3607       In_Tree : Project_Tree_Ref;
3608       Data    : in out Project_Data) is
3609       Mains : constant Variable_Value :=
3610                 Prj.Util.Value_Of (Name_Main, Data.Decl.Attributes, In_Tree);
3611
3612    begin
3613       Data.Mains := Mains.Values;
3614
3615       --  If no Mains were specified, and if we are an extending
3616       --  project, inherit the Mains from the project we are extending.
3617
3618       if Mains.Default then
3619          if Data.Extends /= No_Project then
3620             Data.Mains :=
3621               In_Tree.Projects.Table (Data.Extends).Mains;
3622          end if;
3623
3624       --  In a library project file, Main cannot be specified
3625
3626       elsif Data.Library then
3627          Error_Msg
3628            (Project, In_Tree,
3629             "a library project file cannot have Main specified",
3630             Mains.Location);
3631       end if;
3632    end Get_Mains;
3633
3634    ---------------------------
3635    -- Get_Sources_From_File --
3636    ---------------------------
3637
3638    procedure Get_Sources_From_File
3639      (Path     : String;
3640       Location : Source_Ptr;
3641       Project  : Project_Id;
3642       In_Tree  : Project_Tree_Ref)
3643    is
3644       File        : Prj.Util.Text_File;
3645       Line        : String (1 .. 250);
3646       Last        : Natural;
3647       Source_Name : Name_Id;
3648
3649    begin
3650       Source_Names.Reset;
3651
3652       if Current_Verbosity = High then
3653          Write_Str  ("Opening """);
3654          Write_Str  (Path);
3655          Write_Line (""".");
3656       end if;
3657
3658       --  Open the file
3659
3660       Prj.Util.Open (File, Path);
3661
3662       if not Prj.Util.Is_Valid (File) then
3663          Error_Msg (Project, In_Tree, "file does not exist", Location);
3664       else
3665          --  Read the lines one by one
3666
3667          while not Prj.Util.End_Of_File (File) loop
3668             Prj.Util.Get_Line (File, Line, Last);
3669
3670             --  A non empty, non comment line should contain a file name
3671
3672             if Last /= 0
3673               and then (Last = 1 or else Line (1 .. 2) /= "--")
3674             then
3675                --  ??? we should check that there is no directory information
3676
3677                Name_Len := Last;
3678                Name_Buffer (1 .. Name_Len) := Line (1 .. Last);
3679                Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
3680                Source_Name := Name_Find;
3681                Source_Names.Set
3682                  (K => Source_Name,
3683                   E =>
3684                     (Name     => Source_Name,
3685                      Location => Location,
3686                      Found    => False));
3687             end if;
3688          end loop;
3689
3690          Prj.Util.Close (File);
3691
3692       end if;
3693    end Get_Sources_From_File;
3694
3695    --------------
3696    -- Get_Unit --
3697    --------------
3698
3699    procedure Get_Unit
3700      (Canonical_File_Name : Name_Id;
3701       Naming              : Naming_Data;
3702       Exception_Id        : out Ada_Naming_Exception_Id;
3703       Unit_Name           : out Name_Id;
3704       Unit_Kind           : out Spec_Or_Body;
3705       Needs_Pragma        : out Boolean)
3706    is
3707       Info_Id  : Ada_Naming_Exception_Id
3708         := Ada_Naming_Exceptions.Get (Canonical_File_Name);
3709       VMS_Name : Name_Id;
3710
3711    begin
3712       if Info_Id = No_Ada_Naming_Exception then
3713          if Hostparm.OpenVMS then
3714             VMS_Name := Canonical_File_Name;
3715             Get_Name_String (VMS_Name);
3716
3717             if Name_Buffer (Name_Len) = '.' then
3718                Name_Len := Name_Len - 1;
3719                VMS_Name := Name_Find;
3720             end if;
3721
3722             Info_Id := Ada_Naming_Exceptions.Get (VMS_Name);
3723          end if;
3724
3725       end if;
3726
3727       if Info_Id /= No_Ada_Naming_Exception then
3728          Exception_Id := Info_Id;
3729          Unit_Name := No_Name;
3730          Unit_Kind := Specification;
3731          Needs_Pragma := True;
3732          return;
3733       end if;
3734
3735       Needs_Pragma := False;
3736       Exception_Id := No_Ada_Naming_Exception;
3737
3738       Get_Name_String (Canonical_File_Name);
3739
3740       declare
3741          File          : String := Name_Buffer (1 .. Name_Len);
3742          First         : constant Positive := File'First;
3743          Last          : Natural           := File'Last;
3744          Standard_GNAT : Boolean;
3745
3746       begin
3747          Standard_GNAT :=
3748            Naming.Ada_Spec_Suffix = Default_Ada_Spec_Suffix
3749              and then Naming.Ada_Body_Suffix = Default_Ada_Body_Suffix;
3750
3751          --  Check if the end of the file name is Specification_Append
3752
3753          Get_Name_String (Naming.Ada_Spec_Suffix);
3754
3755          if File'Length > Name_Len
3756            and then File (Last - Name_Len + 1 .. Last) =
3757                                                 Name_Buffer (1 .. Name_Len)
3758          then
3759             --  We have a spec
3760
3761             Unit_Kind := Specification;
3762             Last := Last - Name_Len;
3763
3764             if Current_Verbosity = High then
3765                Write_Str  ("   Specification: ");
3766                Write_Line (File (First .. Last));
3767             end if;
3768
3769          else
3770             Get_Name_String (Naming.Ada_Body_Suffix);
3771
3772             --  Check if the end of the file name is Body_Append
3773
3774             if File'Length > Name_Len
3775               and then File (Last - Name_Len + 1 .. Last) =
3776                                                 Name_Buffer (1 .. Name_Len)
3777             then
3778                --  We have a body
3779
3780                Unit_Kind := Body_Part;
3781                Last := Last - Name_Len;
3782
3783                if Current_Verbosity = High then
3784                   Write_Str  ("   Body: ");
3785                   Write_Line (File (First .. Last));
3786                end if;
3787
3788             elsif Naming.Separate_Suffix /= Naming.Ada_Spec_Suffix then
3789                Get_Name_String (Naming.Separate_Suffix);
3790
3791                --  Check if the end of the file name is Separate_Append
3792
3793                if File'Length > Name_Len
3794                  and then File (Last - Name_Len + 1 .. Last) =
3795                                                 Name_Buffer (1 .. Name_Len)
3796                then
3797                   --  We have a separate (a body)
3798
3799                   Unit_Kind := Body_Part;
3800                   Last := Last - Name_Len;
3801
3802                   if Current_Verbosity = High then
3803                      Write_Str  ("   Separate: ");
3804                      Write_Line (File (First .. Last));
3805                   end if;
3806
3807                else
3808                   Last := 0;
3809                end if;
3810
3811             else
3812                Last := 0;
3813             end if;
3814          end if;
3815
3816          if Last = 0 then
3817
3818             --  This is not a source file
3819
3820             Unit_Name := No_Name;
3821             Unit_Kind := Specification;
3822
3823             if Current_Verbosity = High then
3824                Write_Line ("   Not a valid file name.");
3825             end if;
3826
3827             return;
3828          end if;
3829
3830          Get_Name_String (Naming.Dot_Replacement);
3831          Standard_GNAT :=
3832            Standard_GNAT and then Name_Buffer (1 .. Name_Len) = "-";
3833
3834          if Name_Buffer (1 .. Name_Len) /= "." then
3835
3836             --  If Dot_Replacement is not a single dot, then there should
3837             --  not be any dot in the name.
3838
3839             for Index in First .. Last loop
3840                if File (Index) = '.' then
3841                   if Current_Verbosity = High then
3842                      Write_Line
3843                        ("   Not a valid file name (some dot not replaced).");
3844                   end if;
3845
3846                   Unit_Name := No_Name;
3847                   return;
3848
3849                end if;
3850             end loop;
3851
3852             --  Replace the substring Dot_Replacement with dots
3853
3854             declare
3855                Index : Positive := First;
3856
3857             begin
3858                while Index <= Last - Name_Len + 1 loop
3859
3860                   if File (Index .. Index + Name_Len - 1) =
3861                     Name_Buffer (1 .. Name_Len)
3862                   then
3863                      File (Index) := '.';
3864
3865                      if Name_Len > 1 and then Index < Last then
3866                         File (Index + 1 .. Last - Name_Len + 1) :=
3867                           File (Index + Name_Len .. Last);
3868                      end if;
3869
3870                      Last := Last - Name_Len + 1;
3871                   end if;
3872
3873                   Index := Index + 1;
3874                end loop;
3875             end;
3876          end if;
3877
3878          --  Check if the casing is right
3879
3880          declare
3881             Src : String := File (First .. Last);
3882
3883          begin
3884             case Naming.Casing is
3885                when All_Lower_Case =>
3886                   Fixed.Translate
3887                     (Source  => Src,
3888                      Mapping => Lower_Case_Map);
3889
3890                when All_Upper_Case =>
3891                   Fixed.Translate
3892                     (Source  => Src,
3893                      Mapping => Upper_Case_Map);
3894
3895                when Mixed_Case | Unknown =>
3896                   null;
3897             end case;
3898
3899             if Src /= File (First .. Last) then
3900                if Current_Verbosity = High then
3901                   Write_Line ("   Not a valid file name (casing).");
3902                end if;
3903
3904                Unit_Name := No_Name;
3905                return;
3906             end if;
3907
3908             --  We put the name in lower case
3909
3910             Fixed.Translate
3911               (Source  => Src,
3912                Mapping => Lower_Case_Map);
3913
3914             --  In the standard GNAT naming scheme, check for special cases:
3915             --  children or separates of A, G, I or S, and run time sources.
3916
3917             if Standard_GNAT and then Src'Length >= 3 then
3918                declare
3919                   S1 : constant Character := Src (Src'First);
3920                   S2 : constant Character := Src (Src'First + 1);
3921                   S3 : constant Character := Src (Src'First + 2);
3922
3923                begin
3924                   if S1 = 'a' or else S1 = 'g'
3925                     or else S1 = 'i' or else S1 = 's'
3926                   then
3927                      --  Children or separates of packages A, G, I or S
3928
3929                      if (OpenVMS_On_Target
3930                          and then S2 = '_'
3931                          and then S3 = '_')
3932                         or else
3933                          S2 = '~'
3934                      then
3935                         Src (Src'First + 1) := '.';
3936
3937                      --  If it is potentially a run time source, disable
3938                      --  filling of the mapping file to avoid warnings.
3939
3940                      elsif S2 = '.' then
3941                         Set_Mapping_File_Initial_State_To_Empty;
3942                      end if;
3943
3944                   end if;
3945                end;
3946             end if;
3947
3948             if Current_Verbosity = High then
3949                Write_Str  ("      ");
3950                Write_Line (Src);
3951             end if;
3952
3953             --  Now, we check if this name is a valid unit name
3954
3955             Check_Ada_Name (Name => Src, Unit => Unit_Name);
3956          end;
3957
3958       end;
3959    end Get_Unit;
3960
3961    ----------
3962    -- Hash --
3963    ----------
3964
3965    function Hash (Unit : Unit_Info) return Header_Num is
3966    begin
3967       return Header_Num (Unit.Unit mod 2048);
3968    end Hash;
3969
3970    -----------------------
3971    -- Is_Illegal_Suffix --
3972    -----------------------
3973
3974    function Is_Illegal_Suffix
3975      (Suffix                          : String;
3976       Dot_Replacement_Is_A_Single_Dot : Boolean) return Boolean
3977    is
3978    begin
3979       if Suffix'Length = 0 or else Index (Suffix, ".") = 0 then
3980          return True;
3981       end if;
3982
3983       --  If dot replacement is a single dot, and first character of
3984       --  suffix is also a dot
3985
3986       if Dot_Replacement_Is_A_Single_Dot
3987         and then Suffix (Suffix'First) = '.'
3988       then
3989          for Index in Suffix'First + 1 .. Suffix'Last loop
3990
3991             --  If there is another dot
3992
3993             if Suffix (Index) = '.' then
3994
3995                --  It is illegal to have a letter following the initial dot
3996
3997                return Is_Letter (Suffix (Suffix'First + 1));
3998             end if;
3999          end loop;
4000       end if;
4001
4002       --  Everything is OK
4003
4004       return False;
4005    end Is_Illegal_Suffix;
4006
4007    ----------------------
4008    -- Locate_Directory --
4009    ----------------------
4010
4011    procedure Locate_Directory
4012      (Name    : Name_Id;
4013       Parent  : Name_Id;
4014       Dir     : out Name_Id;
4015       Display : out Name_Id)
4016    is
4017       The_Name   : constant String := Get_Name_String (Name);
4018
4019       The_Parent : constant String :=
4020                      Get_Name_String (Parent) & Directory_Separator;
4021
4022       The_Parent_Last : constant Natural :=
4023                      Compute_Directory_Last (The_Parent);
4024
4025    begin
4026       if Current_Verbosity = High then
4027          Write_Str ("Locate_Directory (""");
4028          Write_Str (The_Name);
4029          Write_Str (""", """);
4030          Write_Str (The_Parent);
4031          Write_Line (""")");
4032       end if;
4033
4034       Dir     := No_Name;
4035       Display := No_Name;
4036
4037       if Is_Absolute_Path (The_Name) then
4038          if Is_Directory (The_Name) then
4039             declare
4040                Normed : constant String :=
4041                           Normalize_Pathname
4042                             (The_Name,
4043                              Resolve_Links  => False,
4044                              Case_Sensitive => True);
4045
4046                Canonical_Path : constant String :=
4047                                   Normalize_Pathname
4048                                     (Normed,
4049                                      Resolve_Links  => True,
4050                                      Case_Sensitive => False);
4051
4052             begin
4053                Name_Len := Normed'Length;
4054                Name_Buffer (1 .. Name_Len) := Normed;
4055                Display := Name_Find;
4056
4057                Name_Len := Canonical_Path'Length;
4058                Name_Buffer (1 .. Name_Len) := Canonical_Path;
4059                Dir := Name_Find;
4060             end;
4061          end if;
4062
4063       else
4064          declare
4065             Full_Path : constant String :=
4066                           The_Parent (The_Parent'First .. The_Parent_Last) &
4067                           The_Name;
4068
4069          begin
4070             if Is_Directory (Full_Path) then
4071                declare
4072                   Normed : constant String :=
4073                              Normalize_Pathname
4074                                (Full_Path,
4075                                 Resolve_Links  => False,
4076                                 Case_Sensitive => True);
4077
4078                   Canonical_Path : constant String :=
4079                                      Normalize_Pathname
4080                                        (Normed,
4081                                         Resolve_Links  => True,
4082                                         Case_Sensitive => False);
4083
4084                begin
4085                   Name_Len := Normed'Length;
4086                   Name_Buffer (1 .. Name_Len) := Normed;
4087                   Display := Name_Find;
4088
4089                   Name_Len := Canonical_Path'Length;
4090                   Name_Buffer (1 .. Name_Len) := Canonical_Path;
4091                   Dir := Name_Find;
4092                end;
4093             end if;
4094          end;
4095       end if;
4096    end Locate_Directory;
4097
4098    ----------------------
4099    -- Look_For_Sources --
4100    ----------------------
4101
4102    procedure Look_For_Sources
4103      (Project      : Project_Id;
4104       In_Tree      : Project_Tree_Ref;
4105       Data         : in out Project_Data;
4106       Follow_Links : Boolean)
4107    is
4108       procedure Get_Path_Names_And_Record_Sources (Follow_Links : Boolean);
4109       --  Find the path names of the source files in the Source_Names table
4110       --  in the source directories and record those that are Ada sources.
4111
4112       procedure Get_Sources_From_File
4113         (Path     : String;
4114          Location : Source_Ptr);
4115       --  Get the sources of a project from a text file
4116
4117       ---------------------------------------
4118       -- Get_Path_Names_And_Record_Sources --
4119       ---------------------------------------
4120
4121       procedure Get_Path_Names_And_Record_Sources (Follow_Links : Boolean) is
4122          Source_Dir : String_List_Id := Data.Source_Dirs;
4123          Element    : String_Element;
4124          Path       : Name_Id;
4125
4126          Dir      : Dir_Type;
4127          Name     : Name_Id;
4128          Canonical_Name : Name_Id;
4129          Name_Str : String (1 .. 1_024);
4130          Last     : Natural := 0;
4131          NL       : Name_Location;
4132
4133          Current_Source : String_List_Id := Nil_String;
4134
4135          First_Error : Boolean := True;
4136
4137          Source_Recorded : Boolean := False;
4138
4139       begin
4140          --  We look in all source directories for the file names in the
4141          --  hash table Source_Names
4142
4143          while Source_Dir /= Nil_String loop
4144             Source_Recorded := False;
4145             Element := In_Tree.String_Elements.Table (Source_Dir);
4146
4147             declare
4148                Dir_Path : constant String := Get_Name_String (Element.Value);
4149             begin
4150                if Current_Verbosity = High then
4151                   Write_Str ("checking directory """);
4152                   Write_Str (Dir_Path);
4153                   Write_Line ("""");
4154                end if;
4155
4156                Open (Dir, Dir_Path);
4157
4158                loop
4159                   Read (Dir, Name_Str, Last);
4160                   exit when Last = 0;
4161                   Name_Len := Last;
4162                   Name_Buffer (1 .. Name_Len) := Name_Str (1 .. Last);
4163                   Name := Name_Find;
4164                   Canonical_Case_File_Name (Name_Str (1 .. Last));
4165                   Name_Len := Last;
4166                   Name_Buffer (1 .. Name_Len) := Name_Str (1 .. Last);
4167                   Canonical_Name := Name_Find;
4168                   NL := Source_Names.Get (Canonical_Name);
4169
4170                   if NL /= No_Name_Location and then not NL.Found then
4171                      NL.Found := True;
4172                      Source_Names.Set (Canonical_Name, NL);
4173                      Name_Len := Dir_Path'Length;
4174                      Name_Buffer (1 .. Name_Len) := Dir_Path;
4175
4176                      if Name_Buffer (Name_Len) /= Directory_Separator then
4177                         Add_Char_To_Name_Buffer (Directory_Separator);
4178                      end if;
4179
4180                      Add_Str_To_Name_Buffer (Name_Str (1 .. Last));
4181                      Path := Name_Find;
4182
4183                      if Current_Verbosity = High then
4184                         Write_Str  ("  found ");
4185                         Write_Line (Get_Name_String (Name));
4186                      end if;
4187
4188                      --  Register the source if it is an Ada compilation unit
4189
4190                      Record_Ada_Source
4191                        (File_Name       => Name,
4192                         Path_Name       => Path,
4193                         Project         => Project,
4194                         In_Tree         => In_Tree,
4195                         Data            => Data,
4196                         Location        => NL.Location,
4197                         Current_Source  => Current_Source,
4198                         Source_Recorded => Source_Recorded,
4199                         Follow_Links    => Follow_Links);
4200                   end if;
4201                end loop;
4202
4203                Close (Dir);
4204             end;
4205
4206             if Source_Recorded then
4207                In_Tree.String_Elements.Table (Source_Dir).Flag :=
4208                  True;
4209             end if;
4210
4211             Source_Dir := Element.Next;
4212          end loop;
4213
4214          --  It is an error if a source file name in a source list or
4215          --  in a source list file is not found.
4216
4217          NL := Source_Names.Get_First;
4218
4219          while NL /= No_Name_Location loop
4220             if not NL.Found then
4221                Err_Vars.Error_Msg_Name_1 := NL.Name;
4222
4223                if First_Error then
4224                   Error_Msg
4225                     (Project, In_Tree,
4226                      "source file { cannot be found",
4227                      NL.Location);
4228                   First_Error := False;
4229
4230                else
4231                   Error_Msg
4232                     (Project, In_Tree,
4233                      "\source file { cannot be found",
4234                      NL.Location);
4235                end if;
4236             end if;
4237
4238             NL := Source_Names.Get_Next;
4239          end loop;
4240       end Get_Path_Names_And_Record_Sources;
4241
4242       ---------------------------
4243       -- Get_Sources_From_File --
4244       ---------------------------
4245
4246       procedure Get_Sources_From_File
4247         (Path     : String;
4248          Location : Source_Ptr)
4249       is
4250       begin
4251          --  Get the list of sources from the file and put them in hash table
4252          --  Source_Names.
4253
4254          Get_Sources_From_File (Path, Location, Project, In_Tree);
4255
4256          --  Look in the source directories to find those sources
4257
4258          Get_Path_Names_And_Record_Sources (Follow_Links);
4259
4260          --  We should have found at least one source.
4261          --  If not, report an error/warning.
4262
4263          if Data.Sources = Nil_String then
4264             Report_No_Ada_Sources (Project, In_Tree, Location);
4265          end if;
4266       end Get_Sources_From_File;
4267
4268    begin
4269       if Data.Ada_Sources_Present then
4270          declare
4271             Sources          : constant Variable_Value :=
4272                                  Util.Value_Of
4273                                    (Name_Source_Files,
4274                                     Data.Decl.Attributes,
4275                                     In_Tree);
4276
4277             Source_List_File : constant Variable_Value :=
4278                                  Util.Value_Of
4279                                    (Name_Source_List_File,
4280                                     Data.Decl.Attributes,
4281                                     In_Tree);
4282
4283             Locally_Removed  : constant Variable_Value :=
4284                                  Util.Value_Of
4285                                    (Name_Locally_Removed_Files,
4286                                     Data.Decl.Attributes,
4287                                     In_Tree);
4288
4289          begin
4290             pragma Assert
4291               (Sources.Kind = List,
4292                "Source_Files is not a list");
4293
4294             pragma Assert
4295               (Source_List_File.Kind = Single,
4296                "Source_List_File is not a single string");
4297
4298             if not Sources.Default then
4299                if not Source_List_File.Default then
4300                   Error_Msg
4301                     (Project, In_Tree,
4302                      "?both variables source_files and " &
4303                      "source_list_file are present",
4304                      Source_List_File.Location);
4305                end if;
4306
4307                --  Sources is a list of file names
4308
4309                declare
4310                   Current  : String_List_Id := Sources.Values;
4311                   Element  : String_Element;
4312                   Location : Source_Ptr;
4313                   Name     : Name_Id;
4314
4315                begin
4316                   Source_Names.Reset;
4317
4318                   Data.Ada_Sources_Present := Current /= Nil_String;
4319
4320                   while Current /= Nil_String loop
4321                      Element :=
4322                        In_Tree.String_Elements.Table (Current);
4323                      Get_Name_String (Element.Value);
4324                      Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
4325                      Name := Name_Find;
4326
4327                      --  If the element has no location, then use the
4328                      --  location of Sources to report possible errors.
4329
4330                      if Element.Location = No_Location then
4331                         Location := Sources.Location;
4332                      else
4333                         Location := Element.Location;
4334                      end if;
4335
4336                      Source_Names.Set
4337                        (K => Name,
4338                         E =>
4339                           (Name     => Name,
4340                            Location => Location,
4341                            Found    => False));
4342
4343                      Current := Element.Next;
4344                   end loop;
4345
4346                   Get_Path_Names_And_Record_Sources (Follow_Links);
4347                end;
4348
4349                --  No source_files specified
4350
4351                --  We check Source_List_File has been specified
4352
4353             elsif not Source_List_File.Default then
4354
4355                --  Source_List_File is the name of the file
4356                --  that contains the source file names
4357
4358                declare
4359                   Source_File_Path_Name : constant String :=
4360                                             Path_Name_Of
4361                                               (Source_List_File.Value,
4362                                                Data.Directory);
4363
4364                begin
4365                   if Source_File_Path_Name'Length = 0 then
4366                      Err_Vars.Error_Msg_Name_1 := Source_List_File.Value;
4367                      Error_Msg
4368                        (Project, In_Tree,
4369                         "file with sources { does not exist",
4370                         Source_List_File.Location);
4371
4372                   else
4373                      Get_Sources_From_File
4374                        (Source_File_Path_Name,
4375                         Source_List_File.Location);
4376                   end if;
4377                end;
4378
4379             else
4380                --  Neither Source_Files nor Source_List_File has been
4381                --  specified. Find all the files that satisfy the naming
4382                --  scheme in all the source directories.
4383
4384                Find_Sources
4385                  (Project, In_Tree, Data, Ada_Language_Index, Follow_Links);
4386             end if;
4387
4388             --  If there are sources that are locally removed, mark them as
4389             --  such in the Units table.
4390
4391             if not Locally_Removed.Default then
4392
4393                --  Sources can be locally removed only in extending
4394                --  project files.
4395
4396                if Data.Extends = No_Project then
4397                   Error_Msg
4398                     (Project, In_Tree,
4399                      "Locally_Removed_Files can only be used " &
4400                      "in an extending project file",
4401                      Locally_Removed.Location);
4402
4403                else
4404                   declare
4405                      Current  : String_List_Id := Locally_Removed.Values;
4406                      Element  : String_Element;
4407                      Location : Source_Ptr;
4408                      OK       : Boolean;
4409                      Unit     : Unit_Data;
4410                      Name     : Name_Id;
4411                      Extended : Project_Id;
4412
4413                   begin
4414                      while Current /= Nil_String loop
4415                         Element :=
4416                           In_Tree.String_Elements.Table (Current);
4417                         Get_Name_String (Element.Value);
4418                         Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
4419                         Name := Name_Find;
4420
4421                         --  If the element has no location, then use the
4422                         --  location of Locally_Removed to report
4423                         --  possible errors.
4424
4425                         if Element.Location = No_Location then
4426                            Location := Locally_Removed.Location;
4427                         else
4428                            Location := Element.Location;
4429                         end if;
4430
4431                         OK := False;
4432
4433                         for Index in Unit_Table.First ..
4434                                   Unit_Table.Last (In_Tree.Units)
4435                         loop
4436                            Unit := In_Tree.Units.Table (Index);
4437
4438                            if Unit.File_Names (Specification).Name = Name then
4439                               OK := True;
4440
4441                               --  Check that this is from a project that
4442                               --  the current project extends, but not the
4443                               --  current project.
4444
4445                               Extended := Unit.File_Names
4446                                 (Specification).Project;
4447
4448                               if Extended = Project then
4449                                  Error_Msg
4450                                    (Project, In_Tree,
4451                                     "cannot remove a source " &
4452                                     "of the same project",
4453                                     Location);
4454
4455                               elsif
4456                                 Project_Extends (Project, Extended, In_Tree)
4457                               then
4458                                  Unit.File_Names
4459                                    (Specification).Path := Slash;
4460                                  Unit.File_Names
4461                                    (Specification).Needs_Pragma := False;
4462                                  In_Tree.Units.Table (Index) :=
4463                                    Unit;
4464                                  Add_Forbidden_File_Name
4465                                    (Unit.File_Names (Specification).Name);
4466                                  exit;
4467
4468                               else
4469                                  Error_Msg
4470                                    (Project, In_Tree,
4471                                     "cannot remove a source from " &
4472                                     "another project",
4473                                     Location);
4474                               end if;
4475
4476                            elsif
4477                              Unit.File_Names (Body_Part).Name = Name
4478                            then
4479                               OK := True;
4480
4481                               --  Check that this is from a project that
4482                               --  the current project extends, but not the
4483                               --  current project.
4484
4485                               Extended := Unit.File_Names
4486                                 (Body_Part).Project;
4487
4488                               if Extended = Project then
4489                                  Error_Msg
4490                                    (Project, In_Tree,
4491                                     "cannot remove a source " &
4492                                     "of the same project",
4493                                     Location);
4494
4495                               elsif
4496                                 Project_Extends (Project, Extended, In_Tree)
4497                               then
4498                                  Unit.File_Names (Body_Part).Path := Slash;
4499                                  Unit.File_Names (Body_Part).Needs_Pragma
4500                                    := False;
4501                                  In_Tree.Units.Table (Index) :=
4502                                    Unit;
4503                                  Add_Forbidden_File_Name
4504                                    (Unit.File_Names (Body_Part).Name);
4505                                  exit;
4506                               end if;
4507
4508                            end if;
4509                         end loop;
4510
4511                         if not OK then
4512                            Err_Vars.Error_Msg_Name_1 := Name;
4513                            Error_Msg
4514                              (Project, In_Tree, "unknown file {", Location);
4515                         end if;
4516
4517                         Current := Element.Next;
4518                      end loop;
4519                   end;
4520                end if;
4521             end if;
4522          end;
4523       end if;
4524
4525       if Data.Other_Sources_Present then
4526
4527          --  Set Source_Present to False. It will be set back to True
4528          --  whenever a source is found.
4529
4530          Data.Other_Sources_Present := False;
4531          for Lang in Ada_Language_Index + 1 .. Last_Language_Index loop
4532
4533             --  For each language (other than Ada) in the project file
4534
4535             if Is_Present (Lang, Data, In_Tree) then
4536
4537                --  Reset the indication that there are sources of this
4538                --  language. It will be set back to True whenever we find a
4539                --  source of the language.
4540
4541                Set (Lang, False, Data, In_Tree);
4542
4543                --  First, get the source suffix for the language
4544
4545                Set (Suffix       => Suffix_For (Lang, Data.Naming, In_Tree),
4546                     For_Language => Lang,
4547                     In_Project   => Data,
4548                     In_Tree      => In_Tree);
4549
4550                --  Then, deal with the naming exceptions, if any
4551
4552                Source_Names.Reset;
4553
4554                declare
4555                   Naming_Exceptions : constant Variable_Value :=
4556                     Value_Of
4557                       (Index     => Language_Names.Table (Lang),
4558                        Src_Index => 0,
4559                        In_Array  => Data.Naming.Implementation_Exceptions,
4560                        In_Tree   => In_Tree);
4561                   Element_Id        : String_List_Id;
4562                   Element           : String_Element;
4563                   File_Id           : Name_Id;
4564                   Source_Found      : Boolean := False;
4565
4566                begin
4567                   --  If there are naming exceptions, look through them one
4568                   --  by one.
4569
4570                   if Naming_Exceptions /= Nil_Variable_Value then
4571                      Element_Id := Naming_Exceptions.Values;
4572
4573                      while Element_Id /= Nil_String loop
4574                         Element := In_Tree.String_Elements.Table
4575                                                           (Element_Id);
4576                         Get_Name_String (Element.Value);
4577                         Canonical_Case_File_Name
4578                           (Name_Buffer (1 .. Name_Len));
4579                         File_Id := Name_Find;
4580
4581                         --  Put each naming exception in the Source_Names
4582                         --  hash table, but if there are repetition, don't
4583                         --  bother after the first instance.
4584
4585                         if
4586                           Source_Names.Get (File_Id) = No_Name_Location
4587                         then
4588                            Source_Found := True;
4589                            Source_Names.Set
4590                              (File_Id,
4591                               (Name     => File_Id,
4592                                Location => Element.Location,
4593                                Found    => False));
4594                         end if;
4595
4596                         Element_Id := Element.Next;
4597                      end loop;
4598
4599                      --  If there is at least one naming exception, record
4600                      --  those that are found in the source directories.
4601
4602                      if Source_Found then
4603                         Record_Other_Sources
4604                           (Project           => Project,
4605                            In_Tree           => In_Tree,
4606                            Data              => Data,
4607                            Language          => Lang,
4608                            Naming_Exceptions => True);
4609                      end if;
4610
4611                   end if;
4612                end;
4613
4614                --  Now, check if a list of sources is declared either through
4615                --  a string list (attribute Source_Files) or a text file
4616                --  (attribute Source_List_File). If a source list is declared,
4617                --  we will consider only those naming exceptions that are
4618                --  on the list.
4619
4620                declare
4621                   Sources          : constant Variable_Value :=
4622                                        Util.Value_Of
4623                                          (Name_Source_Files,
4624                                           Data.Decl.Attributes,
4625                                           In_Tree);
4626
4627                   Source_List_File : constant Variable_Value :=
4628                                        Util.Value_Of
4629                                          (Name_Source_List_File,
4630                                           Data.Decl.Attributes,
4631                                           In_Tree);
4632
4633                begin
4634                   pragma Assert
4635                     (Sources.Kind = List,
4636                      "Source_Files is not a list");
4637
4638                   pragma Assert
4639                     (Source_List_File.Kind = Single,
4640                      "Source_List_File is not a single string");
4641
4642                   if not Sources.Default then
4643                      if not Source_List_File.Default then
4644                         Error_Msg
4645                           (Project, In_Tree,
4646                            "?both variables source_files and " &
4647                            "source_list_file are present",
4648                            Source_List_File.Location);
4649                      end if;
4650
4651                      --  Sources is a list of file names
4652
4653                      declare
4654                         Current  : String_List_Id := Sources.Values;
4655                         Element  : String_Element;
4656                         Location : Source_Ptr;
4657                         Name     : Name_Id;
4658
4659                      begin
4660                         Source_Names.Reset;
4661
4662                         --  Put all the sources in the Source_Names hash table
4663
4664                         while Current /= Nil_String loop
4665                            Element :=
4666                              In_Tree.String_Elements.Table
4667                                (Current);
4668                            Get_Name_String (Element.Value);
4669                            Canonical_Case_File_Name
4670                              (Name_Buffer (1 .. Name_Len));
4671                            Name := Name_Find;
4672
4673                            --  If the element has no location, then use the
4674                            --  location of Sources to report possible errors.
4675
4676                            if Element.Location = No_Location then
4677                               Location := Sources.Location;
4678                            else
4679                               Location := Element.Location;
4680                            end if;
4681
4682                            Source_Names.Set
4683                              (K => Name,
4684                               E =>
4685                                 (Name     => Name,
4686                                  Location => Location,
4687                                  Found    => False));
4688
4689                            Current := Element.Next;
4690                         end loop;
4691
4692                         --  And look for their directories
4693
4694                         Record_Other_Sources
4695                           (Project           => Project,
4696                            In_Tree           => In_Tree,
4697                            Data              => Data,
4698                            Language          => Lang,
4699                            Naming_Exceptions => False);
4700                      end;
4701
4702                      --  No source_files specified
4703
4704                      --  We check if Source_List_File has been specified
4705
4706                   elsif not Source_List_File.Default then
4707
4708                      --  Source_List_File is the name of the file
4709                      --  that contains the source file names
4710
4711                      declare
4712                         Source_File_Path_Name : constant String :=
4713                           Path_Name_Of
4714                             (Source_List_File.Value,
4715                              Data.Directory);
4716
4717                      begin
4718                         if Source_File_Path_Name'Length = 0 then
4719                            Err_Vars.Error_Msg_Name_1 :=
4720                              Source_List_File.Value;
4721                            Error_Msg
4722                              (Project, In_Tree,
4723                               "file with sources { does not exist",
4724                               Source_List_File.Location);
4725
4726                         else
4727                            --  Read the file, putting each source in the
4728                            --  Source_Names hash table.
4729
4730                            Get_Sources_From_File
4731                              (Source_File_Path_Name,
4732                               Source_List_File.Location,
4733                               Project, In_Tree);
4734
4735                            --  And look for their directories
4736
4737                            Record_Other_Sources
4738                              (Project           => Project,
4739                               In_Tree           => In_Tree,
4740                               Data              => Data,
4741                               Language          => Lang,
4742                               Naming_Exceptions => False);
4743                         end if;
4744                      end;
4745
4746                   --  Neither Source_Files nor Source_List_File was specified
4747
4748                   else
4749                      --  Find all the files that satisfy the naming scheme in
4750                      --  all the source directories. All the naming exceptions
4751                      --  that effectively exist are also part of the source
4752                      --  of this language.
4753
4754                      Find_Sources (Project, In_Tree, Data, Lang);
4755                   end if;
4756                end;
4757             end if;
4758          end loop;
4759       end if;
4760    end Look_For_Sources;
4761
4762    ------------------
4763    -- Path_Name_Of --
4764    ------------------
4765
4766    function Path_Name_Of
4767      (File_Name : Name_Id;
4768       Directory : Name_Id) return String
4769    is
4770       Result : String_Access;
4771
4772       The_Directory : constant String := Get_Name_String (Directory);
4773
4774    begin
4775       Get_Name_String (File_Name);
4776       Result := Locate_Regular_File
4777         (File_Name => Name_Buffer (1 .. Name_Len),
4778          Path      => The_Directory);
4779
4780       if Result = null then
4781          return "";
4782       else
4783          Canonical_Case_File_Name (Result.all);
4784          return Result.all;
4785       end if;
4786    end Path_Name_Of;
4787
4788    -------------------------------
4789    -- Prepare_Ada_Naming_Exceptions --
4790    -------------------------------
4791
4792    procedure Prepare_Ada_Naming_Exceptions
4793      (List    : Array_Element_Id;
4794       In_Tree : Project_Tree_Ref;
4795       Kind    : Spec_Or_Body)
4796    is
4797       Current : Array_Element_Id := List;
4798       Element : Array_Element;
4799
4800       Unit : Unit_Info;
4801
4802    begin
4803       --  Traverse the list
4804
4805       while Current /= No_Array_Element loop
4806          Element := In_Tree.Array_Elements.Table (Current);
4807
4808          if Element.Index /= No_Name then
4809             Unit :=
4810               (Kind => Kind,
4811                Unit => Element.Index,
4812                Next => No_Ada_Naming_Exception);
4813             Reverse_Ada_Naming_Exceptions.Set
4814               (Unit, (Element.Value.Value, Element.Value.Index));
4815             Unit.Next := Ada_Naming_Exceptions.Get (Element.Value.Value);
4816             Ada_Naming_Exception_Table.Increment_Last;
4817             Ada_Naming_Exception_Table.Table
4818               (Ada_Naming_Exception_Table.Last) := Unit;
4819             Ada_Naming_Exceptions.Set
4820               (Element.Value.Value, Ada_Naming_Exception_Table.Last);
4821          end if;
4822
4823          Current := Element.Next;
4824       end loop;
4825    end Prepare_Ada_Naming_Exceptions;
4826
4827    ---------------------
4828    -- Project_Extends --
4829    ---------------------
4830
4831    function Project_Extends
4832      (Extending : Project_Id;
4833       Extended  : Project_Id;
4834       In_Tree   : Project_Tree_Ref) return Boolean
4835    is
4836       Current : Project_Id := Extending;
4837    begin
4838       loop
4839          if Current = No_Project then
4840             return False;
4841
4842          elsif Current = Extended then
4843             return True;
4844          end if;
4845
4846          Current := In_Tree.Projects.Table (Current).Extends;
4847       end loop;
4848    end Project_Extends;
4849
4850    -----------------------
4851    -- Record_Ada_Source --
4852    -----------------------
4853
4854    procedure Record_Ada_Source
4855      (File_Name       : Name_Id;
4856       Path_Name       : Name_Id;
4857       Project         : Project_Id;
4858       In_Tree         : Project_Tree_Ref;
4859       Data            : in out Project_Data;
4860       Location        : Source_Ptr;
4861       Current_Source  : in out String_List_Id;
4862       Source_Recorded : in out Boolean;
4863       Follow_Links    : Boolean)
4864    is
4865       Canonical_File_Name : Name_Id;
4866       Canonical_Path_Name : Name_Id;
4867
4868       Exception_Id : Ada_Naming_Exception_Id;
4869       Unit_Name    : Name_Id;
4870       Unit_Kind    : Spec_Or_Body;
4871       Unit_Index   : Int := 0;
4872       Info         : Unit_Info;
4873       Name_Index   : Name_And_Index;
4874       Needs_Pragma : Boolean;
4875
4876       The_Location    : Source_Ptr              := Location;
4877       Previous_Source : constant String_List_Id := Current_Source;
4878       Except_Name     : Name_And_Index          := No_Name_And_Index;
4879
4880       Unit_Prj : Unit_Project;
4881
4882       File_Name_Recorded : Boolean := False;
4883
4884    begin
4885       Get_Name_String (File_Name);
4886       Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
4887       Canonical_File_Name := Name_Find;
4888
4889       declare
4890          Canonical_Path : constant String :=
4891                             Normalize_Pathname
4892                               (Get_Name_String (Path_Name),
4893                                Resolve_Links => Follow_Links,
4894                                Case_Sensitive => False);
4895       begin
4896          Name_Len := 0;
4897          Add_Str_To_Name_Buffer (Canonical_Path);
4898          Canonical_Path_Name := Name_Find;
4899       end;
4900
4901       --  Find out the unit name, the unit kind and if it needs
4902       --  a specific SFN pragma.
4903
4904       Get_Unit
4905         (Canonical_File_Name => Canonical_File_Name,
4906          Naming              => Data.Naming,
4907          Exception_Id        => Exception_Id,
4908          Unit_Name           => Unit_Name,
4909          Unit_Kind           => Unit_Kind,
4910          Needs_Pragma        => Needs_Pragma);
4911
4912       if Exception_Id = No_Ada_Naming_Exception and then
4913         Unit_Name = No_Name
4914       then
4915          if Current_Verbosity = High then
4916             Write_Str  ("   """);
4917             Write_Str  (Get_Name_String (Canonical_File_Name));
4918             Write_Line (""" is not a valid source file name (ignored).");
4919          end if;
4920
4921       else
4922          --  Check to see if the source has been hidden by an exception,
4923          --  but only if it is not an exception.
4924
4925          if not Needs_Pragma then
4926             Except_Name :=
4927               Reverse_Ada_Naming_Exceptions.Get
4928                 ((Unit_Kind, Unit_Name, No_Ada_Naming_Exception));
4929
4930             if Except_Name /= No_Name_And_Index then
4931                if Current_Verbosity = High then
4932                   Write_Str  ("   """);
4933                   Write_Str  (Get_Name_String (Canonical_File_Name));
4934                   Write_Str  (""" contains a unit that is found in """);
4935                   Write_Str  (Get_Name_String (Except_Name.Name));
4936                   Write_Line (""" (ignored).");
4937                end if;
4938
4939                --  The file is not included in the source of the project,
4940                --  because it is hidden by the exception.
4941                --  So, there is nothing else to do.
4942
4943                return;
4944             end if;
4945          end if;
4946
4947          loop
4948             if Exception_Id /= No_Ada_Naming_Exception then
4949                Info := Ada_Naming_Exception_Table.Table (Exception_Id);
4950                Exception_Id := Info.Next;
4951                Info.Next := No_Ada_Naming_Exception;
4952                Name_Index := Reverse_Ada_Naming_Exceptions.Get (Info);
4953
4954                Unit_Name  := Info.Unit;
4955                Unit_Index := Name_Index.Index;
4956                Unit_Kind  := Info.Kind;
4957             end if;
4958
4959             --  Put the file name in the list of sources of the project
4960
4961             if not File_Name_Recorded then
4962                String_Element_Table.Increment_Last
4963                  (In_Tree.String_Elements);
4964                In_Tree.String_Elements.Table
4965                  (String_Element_Table.Last
4966                    (In_Tree.String_Elements)) :=
4967                  (Value         => Canonical_File_Name,
4968                   Display_Value => File_Name,
4969                   Location      => No_Location,
4970                   Flag          => False,
4971                   Next          => Nil_String,
4972                   Index         => Unit_Index);
4973             end if;
4974
4975             if Current_Source = Nil_String then
4976                Data.Sources := String_Element_Table.Last
4977                                  (In_Tree.String_Elements);
4978             else
4979                In_Tree.String_Elements.Table
4980                  (Current_Source).Next :=
4981                  String_Element_Table.Last
4982                    (In_Tree.String_Elements);
4983             end if;
4984
4985             Current_Source := String_Element_Table.Last
4986                                 (In_Tree.String_Elements);
4987
4988             --  Put the unit in unit list
4989
4990             declare
4991                The_Unit      : Unit_Id :=
4992                  Units_Htable.Get (In_Tree.Units_HT, Unit_Name);
4993                The_Unit_Data : Unit_Data;
4994
4995             begin
4996                if Current_Verbosity = High then
4997                   Write_Str  ("Putting ");
4998                   Write_Str  (Get_Name_String (Unit_Name));
4999                   Write_Line (" in the unit list.");
5000                end if;
5001
5002                --  The unit is already in the list, but may be it is
5003                --  only the other unit kind (spec or body), or what is
5004                --  in the unit list is a unit of a project we are extending.
5005
5006                if The_Unit /= No_Unit then
5007                   The_Unit_Data := In_Tree.Units.Table (The_Unit);
5008
5009                   if The_Unit_Data.File_Names (Unit_Kind).Name = No_Name
5010                     or else Project_Extends
5011                       (Data.Extends,
5012                        The_Unit_Data.File_Names (Unit_Kind).Project,
5013                        In_Tree)
5014                   then
5015                      if The_Unit_Data.File_Names (Unit_Kind).Path = Slash then
5016                         Remove_Forbidden_File_Name
5017                           (The_Unit_Data.File_Names (Unit_Kind).Name);
5018                      end if;
5019
5020                      --  Record the file name in the hash table Files_Htable
5021
5022                      Unit_Prj := (Unit => The_Unit, Project => Project);
5023                      Files_Htable.Set
5024                        (In_Tree.Files_HT,
5025                         Canonical_File_Name,
5026                         Unit_Prj);
5027
5028                      The_Unit_Data.File_Names (Unit_Kind) :=
5029                        (Name         => Canonical_File_Name,
5030                         Index        => Unit_Index,
5031                         Display_Name => File_Name,
5032                         Path         => Canonical_Path_Name,
5033                         Display_Path => Path_Name,
5034                         Project      => Project,
5035                         Needs_Pragma => Needs_Pragma);
5036                      In_Tree.Units.Table (The_Unit) :=
5037                        The_Unit_Data;
5038                      Source_Recorded := True;
5039
5040                   elsif The_Unit_Data.File_Names (Unit_Kind).Project = Project
5041                     and then (Data.Known_Order_Of_Source_Dirs or else
5042                               The_Unit_Data.File_Names (Unit_Kind).Path =
5043                                 Canonical_Path_Name)
5044                   then
5045                      if Previous_Source = Nil_String then
5046                         Data.Sources := Nil_String;
5047                      else
5048                         In_Tree.String_Elements.Table
5049                           (Previous_Source).Next := Nil_String;
5050                         String_Element_Table.Decrement_Last
5051                           (In_Tree.String_Elements);
5052                      end if;
5053
5054                      Current_Source := Previous_Source;
5055
5056                   else
5057                      --  It is an error to have two units with the same name
5058                      --  and the same kind (spec or body).
5059
5060                      if The_Location = No_Location then
5061                         The_Location :=
5062                           In_Tree.Projects.Table
5063                             (Project).Location;
5064                      end if;
5065
5066                      Err_Vars.Error_Msg_Name_1 := Unit_Name;
5067                      Error_Msg
5068                        (Project, In_Tree, "duplicate source {", The_Location);
5069
5070                      Err_Vars.Error_Msg_Name_1 :=
5071                        In_Tree.Projects.Table
5072                          (The_Unit_Data.File_Names (Unit_Kind).Project).Name;
5073                      Err_Vars.Error_Msg_Name_2 :=
5074                        The_Unit_Data.File_Names (Unit_Kind).Path;
5075                      Error_Msg
5076                        (Project, In_Tree,
5077                         "\   project file {, {", The_Location);
5078
5079                      Err_Vars.Error_Msg_Name_1 :=
5080                        In_Tree.Projects.Table (Project).Name;
5081                      Err_Vars.Error_Msg_Name_2 := Canonical_Path_Name;
5082                      Error_Msg
5083                        (Project, In_Tree,
5084                         "\   project file {, {", The_Location);
5085                   end if;
5086
5087                --  It is a new unit, create a new record
5088
5089                else
5090                   --  First, check if there is no other unit with this file
5091                   --  name in another project. If it is, report an error.
5092                   --  Of course, we do that only for the first unit in the
5093                   --  source file.
5094
5095                   Unit_Prj := Files_Htable.Get
5096                     (In_Tree.Files_HT, Canonical_File_Name);
5097
5098                   if not File_Name_Recorded and then
5099                     Unit_Prj /= No_Unit_Project
5100                   then
5101                      Error_Msg_Name_1 := File_Name;
5102                      Error_Msg_Name_2 :=
5103                        In_Tree.Projects.Table
5104                          (Unit_Prj.Project).Name;
5105                      Error_Msg
5106                        (Project, In_Tree,
5107                         "{ is already a source of project {",
5108                         Location);
5109
5110                   else
5111                      Unit_Table.Increment_Last (In_Tree.Units);
5112                      The_Unit := Unit_Table.Last (In_Tree.Units);
5113                      Units_Htable.Set
5114                        (In_Tree.Units_HT, Unit_Name, The_Unit);
5115                      Unit_Prj := (Unit => The_Unit, Project => Project);
5116                      Files_Htable.Set
5117                        (In_Tree.Files_HT,
5118                         Canonical_File_Name,
5119                         Unit_Prj);
5120                      The_Unit_Data.Name := Unit_Name;
5121                      The_Unit_Data.File_Names (Unit_Kind) :=
5122                        (Name         => Canonical_File_Name,
5123                         Index        => Unit_Index,
5124                         Display_Name => File_Name,
5125                         Path         => Canonical_Path_Name,
5126                         Display_Path => Path_Name,
5127                         Project      => Project,
5128                         Needs_Pragma => Needs_Pragma);
5129                      In_Tree.Units.Table (The_Unit) :=
5130                        The_Unit_Data;
5131                      Source_Recorded := True;
5132                   end if;
5133                end if;
5134             end;
5135
5136             exit when Exception_Id = No_Ada_Naming_Exception;
5137             File_Name_Recorded := True;
5138          end loop;
5139       end if;
5140    end Record_Ada_Source;
5141
5142    --------------------------
5143    -- Record_Other_Sources --
5144    --------------------------
5145
5146    procedure Record_Other_Sources
5147      (Project           : Project_Id;
5148       In_Tree           : Project_Tree_Ref;
5149       Data              : in out Project_Data;
5150       Language          : Language_Index;
5151       Naming_Exceptions : Boolean)
5152    is
5153       Source_Dir : String_List_Id := Data.Source_Dirs;
5154       Element    : String_Element;
5155       Path       : Name_Id;
5156
5157       Dir            : Dir_Type;
5158       Canonical_Name : Name_Id;
5159
5160       Name_Str : String (1 .. 1_024);
5161       Last     : Natural := 0;
5162       NL       : Name_Location;
5163
5164       First_Error : Boolean := True;
5165
5166       Suffix : constant String := Body_Suffix_Of (Language, Data, In_Tree);
5167
5168    begin
5169       while Source_Dir /= Nil_String loop
5170          Element := In_Tree.String_Elements.Table (Source_Dir);
5171
5172          declare
5173             Dir_Path : constant String := Get_Name_String (Element.Value);
5174
5175          begin
5176             if Current_Verbosity = High then
5177                Write_Str ("checking directory """);
5178                Write_Str (Dir_Path);
5179                Write_Str (""" for ");
5180
5181                if Naming_Exceptions then
5182                   Write_Str ("naming exceptions");
5183
5184                else
5185                   Write_Str ("sources");
5186                end if;
5187
5188                Write_Str (" of Language ");
5189                Display_Language_Name (Language);
5190             end if;
5191
5192             Open (Dir, Dir_Path);
5193
5194             loop
5195                Read (Dir, Name_Str, Last);
5196                exit when Last = 0;
5197
5198                if Is_Regular_File
5199                  (Dir_Path & Directory_Separator & Name_Str (1 .. Last))
5200                then
5201                   Name_Len := Last;
5202                   Name_Buffer (1 .. Name_Len) := Name_Str (1 .. Last);
5203                   Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
5204                   Canonical_Name := Name_Find;
5205                   NL := Source_Names.Get (Canonical_Name);
5206
5207                   if NL /= No_Name_Location then
5208                      if NL.Found then
5209                         if not Data.Known_Order_Of_Source_Dirs then
5210                            Error_Msg_Name_1 := Canonical_Name;
5211                            Error_Msg
5212                              (Project, In_Tree,
5213                               "{ is found in several source directories",
5214                               NL.Location);
5215                         end if;
5216
5217                      else
5218                         NL.Found := True;
5219                         Source_Names.Set (Canonical_Name, NL);
5220                         Name_Len := Dir_Path'Length;
5221                         Name_Buffer (1 .. Name_Len) := Dir_Path;
5222                         Add_Char_To_Name_Buffer (Directory_Separator);
5223                         Add_Str_To_Name_Buffer (Name_Str (1 .. Last));
5224                         Path := Name_Find;
5225
5226                         Check_For_Source
5227                           (File_Name        => Canonical_Name,
5228                            Path_Name        => Path,
5229                            Project          => Project,
5230                            In_Tree          => In_Tree,
5231                            Data             => Data,
5232                            Location         => NL.Location,
5233                            Language         => Language,
5234                            Suffix           => Suffix,
5235                            Naming_Exception => Naming_Exceptions);
5236                      end if;
5237                   end if;
5238                end if;
5239             end loop;
5240
5241             Close (Dir);
5242          end;
5243
5244          Source_Dir := Element.Next;
5245       end loop;
5246
5247       if not Naming_Exceptions then
5248          NL := Source_Names.Get_First;
5249
5250          --  It is an error if a source file name in a source list or
5251          --  in a source list file is not found.
5252
5253          while NL /= No_Name_Location loop
5254             if not NL.Found then
5255                Err_Vars.Error_Msg_Name_1 := NL.Name;
5256
5257                if First_Error then
5258                   Error_Msg
5259                     (Project, In_Tree,
5260                      "source file { cannot be found",
5261                      NL.Location);
5262                   First_Error := False;
5263
5264                else
5265                   Error_Msg
5266                     (Project, In_Tree,
5267                      "\source file { cannot be found",
5268                      NL.Location);
5269                end if;
5270             end if;
5271
5272             NL := Source_Names.Get_Next;
5273          end loop;
5274
5275          --  Any naming exception of this language that is not in a list
5276          --  of sources must be removed.
5277
5278          declare
5279             Source_Id : Other_Source_Id := Data.First_Other_Source;
5280             Prev_Id   : Other_Source_Id := No_Other_Source;
5281             Source    : Other_Source;
5282
5283          begin
5284             while Source_Id /= No_Other_Source loop
5285                Source := In_Tree.Other_Sources.Table (Source_Id);
5286
5287                if Source.Language = Language
5288                  and then Source.Naming_Exception
5289                then
5290                   if Current_Verbosity = High then
5291                      Write_Str ("Naming exception """);
5292                      Write_Str (Get_Name_String (Source.File_Name));
5293                      Write_Str (""" is not in the list of sources,");
5294                      Write_Line (" so it is removed.");
5295                   end if;
5296
5297                   if Prev_Id = No_Other_Source then
5298                      Data.First_Other_Source := Source.Next;
5299
5300                   else
5301                      In_Tree.Other_Sources.Table
5302                        (Prev_Id).Next := Source.Next;
5303                   end if;
5304
5305                   Source_Id := Source.Next;
5306
5307                   if Source_Id = No_Other_Source then
5308                      Data.Last_Other_Source := Prev_Id;
5309                   end if;
5310
5311                else
5312                   Prev_Id := Source_Id;
5313                   Source_Id := Source.Next;
5314                end if;
5315             end loop;
5316          end;
5317       end if;
5318    end Record_Other_Sources;
5319
5320    ---------------------------
5321    -- Report_No_Ada_Sources --
5322    ---------------------------
5323
5324    procedure Report_No_Ada_Sources
5325      (Project  : Project_Id;
5326       In_Tree  : Project_Tree_Ref;
5327       Location : Source_Ptr)
5328    is
5329    begin
5330       case When_No_Sources is
5331          when Silent =>
5332             null;
5333
5334          when Warning | Error =>
5335             Error_Msg_Warn := When_No_Sources = Warning;
5336
5337             Error_Msg
5338               (Project, In_Tree,
5339                "<there are no Ada sources in this project",
5340                Location);
5341       end case;
5342    end Report_No_Ada_Sources;
5343
5344    ----------------------
5345    -- Show_Source_Dirs --
5346    ----------------------
5347
5348    procedure Show_Source_Dirs
5349      (Project : Project_Id;
5350       In_Tree : Project_Tree_Ref)
5351    is
5352       Current : String_List_Id;
5353       Element : String_Element;
5354
5355    begin
5356       Write_Line ("Source_Dirs:");
5357
5358       Current := In_Tree.Projects.Table (Project).Source_Dirs;
5359       while Current /= Nil_String loop
5360          Element := In_Tree.String_Elements.Table (Current);
5361          Write_Str  ("   ");
5362          Write_Line (Get_Name_String (Element.Value));
5363          Current := Element.Next;
5364       end loop;
5365
5366       Write_Line ("end Source_Dirs.");
5367    end Show_Source_Dirs;
5368
5369    ----------------
5370    -- Suffix_For --
5371    ----------------
5372
5373    function Suffix_For
5374      (Language : Language_Index;
5375       Naming   : Naming_Data;
5376       In_Tree  : Project_Tree_Ref) return Name_Id
5377    is
5378       Suffix : constant Variable_Value :=
5379         Value_Of
5380           (Index     => Language_Names.Table (Language),
5381            Src_Index => 0,
5382            In_Array  => Naming.Body_Suffix,
5383            In_Tree   => In_Tree);
5384    begin
5385       --  If no suffix for this language in package Naming, use the default
5386
5387       if Suffix = Nil_Variable_Value then
5388          Name_Len := 0;
5389
5390          case Language is
5391             when Ada_Language_Index =>
5392                Add_Str_To_Name_Buffer (".adb");
5393
5394             when C_Language_Index =>
5395                Add_Str_To_Name_Buffer (".c");
5396
5397             when C_Plus_Plus_Language_Index =>
5398                Add_Str_To_Name_Buffer (".cpp");
5399
5400             when others =>
5401                return No_Name;
5402          end case;
5403
5404       --  Otherwise use the one specified
5405
5406       else
5407          Get_Name_String (Suffix.Value);
5408       end if;
5409
5410       Canonical_Case_File_Name (Name_Buffer (1 .. Name_Len));
5411       return Name_Find;
5412    end Suffix_For;
5413
5414    -------------------------
5415    -- Warn_If_Not_Sources --
5416    -------------------------
5417
5418    --  comments needed in this body ???
5419
5420    procedure Warn_If_Not_Sources
5421      (Project     : Project_Id;
5422       In_Tree     : Project_Tree_Ref;
5423       Conventions : Array_Element_Id;
5424       Specs       : Boolean;
5425       Extending   : Boolean)
5426    is
5427       Conv          : Array_Element_Id := Conventions;
5428       Unit          : Name_Id;
5429       The_Unit_Id   : Unit_Id;
5430       The_Unit_Data : Unit_Data;
5431       Location      : Source_Ptr;
5432
5433    begin
5434       while Conv /= No_Array_Element loop
5435          Unit := In_Tree.Array_Elements.Table (Conv).Index;
5436          Error_Msg_Name_1 := Unit;
5437          Get_Name_String (Unit);
5438          To_Lower (Name_Buffer (1 .. Name_Len));
5439          Unit := Name_Find;
5440          The_Unit_Id := Units_Htable.Get
5441            (In_Tree.Units_HT, Unit);
5442          Location := In_Tree.Array_Elements.Table
5443                                             (Conv).Value.Location;
5444
5445          if The_Unit_Id = No_Unit then
5446             Error_Msg
5447               (Project, In_Tree,
5448                "?unknown unit {",
5449                Location);
5450
5451          else
5452             The_Unit_Data := In_Tree.Units.Table (The_Unit_Id);
5453             Error_Msg_Name_2 :=
5454               In_Tree.Array_Elements.Table (Conv).Value.Value;
5455
5456             if Specs then
5457                if not Check_Project
5458                  (The_Unit_Data.File_Names (Specification).Project,
5459                   Project, In_Tree, Extending)
5460                then
5461                   Error_Msg
5462                     (Project, In_Tree,
5463                      "?source of spec of unit { ({)" &
5464                      " cannot be found in this project",
5465                      Location);
5466                end if;
5467
5468             else
5469                if not Check_Project
5470                  (The_Unit_Data.File_Names (Body_Part).Project,
5471                   Project, In_Tree, Extending)
5472                then
5473                   Error_Msg
5474                     (Project, In_Tree,
5475                      "?source of body of unit { ({)" &
5476                      " cannot be found in this project",
5477                      Location);
5478                end if;
5479             end if;
5480          end if;
5481
5482          Conv := In_Tree.Array_Elements.Table (Conv).Next;
5483       end loop;
5484    end Warn_If_Not_Sources;
5485
5486 end Prj.Nmsc;